1997 NAICS Definitions
334 Computer and Electronic Product Manufacturing

Industries in the Computer and Electronic Product Manufacturing subsector group establishments that manufacture computers, computer peripherals, communications equipment, and similar electronic products, and establishments that manufacture components for such products. The Computer and Electronic Product Manufacturing industries have been combined in the hierarchy of NAICS because of the economic significance they have attained. Their rapid growth suggests that they will become even more important to the economies of all three North American countries in the future, and in addition their manufacturing processes are fundamentally different from the manufacturing processes of other machinery and equipment. The design and use of integrated circuits and the application of highly specialized miniaturization technologies are common elements in the production technologies of the computer and electronic subsector. Convergence of technology motivates this NAICS subsector. Digitalization of sound recording, for example, causes both the medium (the compact disc) and the equipment to resemble the technologies for recording, storing, transmitting, and manipulating data. Communications technology and equipment have been converging with computer technology. When technologically-related components are in the same sector, it makes it easier to adjust the classification for future changes, without needing to redefine its basic structure. The creation of the Computer and Electronic Product Manufacturing subsector will assist in delineating new and emerging industries because the activities that will serve as the probable sources of new industries, such as computer manufacturing and communications equipment manufacturing, or computers and audio equipment are brought together. As new activities emerge, they are less likely therefore, to cross the subsector boundaries of the classification.

3341 Computer and Peripheral Equipment Manufacturing

33411 Computer and Peripheral Equipment Manufacturing

This industry comprises establishments primarily engaged in manufacturing and/or assembling electronic computers, such as mainframes, personal computers, workstations, laptops, and computer servers; and computer peripheral equipment, such as storage devices, printers, monitors, input/output devices and terminals. Computers can be analog, digital, or hybrid. Digital computers, the most common type, are devices that do all of the following: (1) store the processing program or programs and the data immediately necessary for the execution of the program; (2) can be freely programmed in accordance with the requirements of the user; (3) perform arithmetical computations specified by the user; and (4) execute, without human intervention, a processing program that requires the computer to modify its execution by logical decision during the processing run. Analog computers are capable of simulating mathematical models and comprise at least analog, control, and programming elements.

334111 Electronic Computer Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing and/or assembling electronic computers, such as mainframes, personal computers, workstations, laptops, and computer servers. Computers can be analog, digital, or hybrid. Digital computers, the most common type, are devices that do all of the following: (1) store the processing program or programs and the data immediately necessary for the execution of the program; (2) can be freely programmed in accordance with the requirements of the user; (3) perform arithmetical computations specified by the user; and (4) execute, without human intervention, a processing program that requires the computer to modify its execution by logical decision during the processing run. Analog computers are capable of simulating mathematical models and contain at least analog, control, and programming elements. The manufacture of computers includes the assembly or integration of processors, coprocessors, memory, storage, and input/output devices into a user-programmable final product.

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NAICS	SIC	Corresponding Index Entries
334111	3571	Analog computers manufacturing
334111	3571	Computer servers manufacturing
334111	3571	Computers manufacturing
334111	3571	Digital computers manufacturing
334111	3571	Hand held computers (e.g., PDAs) manufacturing
334111	3571	Hybrid computers manufacturing
334111	3571	Laptop computers manufacturing
334111	3571	Mainframe computers manufacturing
334111	3571	Microcomputers manufacturing
334111	3571	Minicomputers manufacturing
334111	3571	Notebook computers manufacturing
334111	3571	Personal computers manufacturing
334111	3571	Portable computers manufacturing
334111	3571	Workstations, computer, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing computer storage devices that allow the storage and retrieval of data from a phase change, magnetic, optical, or magnetic/optical media. Examples of products made by these establishments are CD-ROM drives, floppy disk drives, hard disk drives, and tape storage and backup units.

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NAICS	SIC	Corresponding Index Entries
334112	3572	CD-ROM drives manufacturing
334112	3572	Direct access storage devices manufacturing
334112	3572	Disk drives, computer, manufacturing
334112	3572	Flexible (i.e., floppy) magnetic disk drives manufacturing
334112	3572	Floppy disk drives manufacturing
334112	3572	Hard disk drives manufacturing
334112	3572	Magnetic/optical combination storage units for computers manufacturing
334112	3572	Optical disk drives manufacturing
334112	3572	Storage devices, computer, manufacturing
334112	3572	Tape storage units (e.g., drive backups), computer peripheral equipment, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing computer terminals. Computer terminals are input/output devices that connect with a central computer for processing.

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NAICS	SIC	Corresponding Index Entries
334113	3575	Computer terminals manufacturing
334113	3575	Teleprinters (i.e., computer terminals) manufacturing
334113	3575	Terminals, computer, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing computer peripheral equipment (except storage devices and computer terminals).

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334119	3578	ATM's (automatic teller machines) manufacturing
334119	3578	Automatic teller machines (ATM) manufacturing
334119	3577	Computer input/output equipment (except terminals) manufacturing
334119	3577	Digital cameras manufacturing
334119	3577	Flat panel displays (i.e., complete units), computer peripheral equipment, manufacturing
334119	3578	Funds transfer devices manufacturing
334119	3577	Input/output equipment, computer (except terminals), manufacturing
334119	3577	Joystick devices manufacturing
334119	3577	Keyboards, computer peripheral equipment, manufacturing
334119	3577	Magnetic ink recognition devices, computer peripheral equipment, manufacturing
334119	3577	Monitors, computer peripheral equipment, manufacturing
334119	3577	Mouse devices, computer peripheral equipment, manufacturing
334119	3577	Optical readers and scanners manufacturing
334119	3577	Overhead projectors, computer peripheral-type, manufacturing
334119	3577	Plotters, computer, manufacturing
334119	3578	Point of sale terminals manufacturing
334119	3577	Pointing devices, computer peripheral equipment, manufacturing
334119	3577	Printers, computer, manufacturing

33421 Telephone Apparatus Manufacturing

334210 Telephone Apparatus Manufacturing

This industry comprises establishments primarily engaged in manufacturing wire telephone and data communications equipment. These products may be standalone or board-level components of a larger system. Examples of products made by these establishments are central office switching equipment, cordless telephones (except cellular), PBX equipment, telephones, telephone answering machines, and data communications equipment, such as bridges, routers, and gateways.

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NAICS	SIC	Corresponding Index Entries
334210	3661	Carrier equipment (i.e., analog, digital), telephone, manufacturing
334210	3661	Central office and switching equipment, telephone, manufacturing
334210	3661	Communications headgear, telephone, manufacturing
334210	3661	Cordless telephones (except cellular) manufacturing
334210	3661	Data communications equipment (e.g., bridges, gateways, routers) manufacturing
334210	3661	Facsimile equipment, standalone, manufacturing
334210	3661	Keysets, telephone, manufacturing
334210	3661	Local area network (LAN) communications equipment (e.g., bridges, gateways, routers) manufacturi
334210	3661	Modems, carrier equipment, manufacturing
334210	3661	Multiplex equipment, telephone, manufacturing
334210	3661	PBX (private branch exchange) equipment manufacturing
334210	3661	Private branch exchange (PBX) equipment manufacturing
334210	3661	Repeater and transceiver equipment, carrier line, manufacturing
334210	3661	Subscriber loop equipment, telephone, manufacturing
334210	3661	Switching equipment, telephone, manufacturing
334210	3661	Telephone answering machines manufacturing
334210	3661	Telephone carrier line equipment manufacturing
334210	3661	Telephone carrier switching equipment manufacturing
334210	3661	Telephones (except cellular telephone) manufacturing
334210	3661	Telephones, coin operated, manufacturing
334210	3661	Toll switching equipment, telephone, manufacturing
334210	3661	Wide area network communications equipment (e.g., bridges, gateways, routers) manufacturing

334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing

This industry comprises establishments primarily engaged in manufacturing radio and television broadcast and wireless communications equipment. Examples of products made by these establishments are: transmitting and receiving antennas, cable television equipment, GPS equipment, pagers, cellular phones, mobile communications equipment, and radio and television studio and broadcasting equipment.

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NAICS	SIC	Corresponding Index Entries
334220	3663	Airborne radio communications equipment manufacturing
334220	3663	Amplifiers, (e.g., RF power and IF), broadcast and studio equipment, manufacturing
334220	3679	Antennas, satellite, manufacturing
334220	3679	Antennas, transmitting and receiving, manufacturing
334220	3679	Automobile antennas manufacturing
334220	3663	Broadcast equipment (including studio), for radio and television, manufacturing
334220	3663	Cable decoders manufacturing
334220	3663	Cable television transmission and receiving equipment manufacturing
334220	3663	Cameras, television, manufacturing
334220	3663	CB (citizens band) radios manufacturing
334220	3663	Cellular telephones manufacturing
334220	3663	Citizens band (CB) radios manufacturing
334220	3663	Closed circuit television equipment manufacturing
334220	3663	Communications equipment, mobile and microwave, manufacturing
334220	3663	Earth station communications equipment manufacturing
334220	3663	Global positioning system (GPS) equipment manufacturing
334220	3663	GPS (global positioning system) equipment manufacturing
334220	3663	Marine radio communications equipment manufacturing
334220	3663	Microwave communications equipment manufacturing
334220	3663	Mobile communications equipment manufacturing
334220	3663	Pagers manufacturing
334220	3663	Radio transmitting antennas and ground equipment manufacturing
334220	3663	Receiver-transmitter units (i.e., transceivers) manufacturing
334220	3679	Satellite antennas manufacturing
334220	3663	Satellite communications equipment manufacturing
334220	3663	Space satellites, communications, manufacturing
334220	3663	Studio equipment, radio and television broadcasting, manufacturing
334220	3663	Telephones, cellular, manufacturing
334220	3663	Television transmitting antennas and ground equipment manufacturing
334220	3663	Television, closed-circuit equipment, manufacturing
334220	3663	Transceivers (i.e., transmitter-receiver units) manufacturing

334290 Other Communications Equipment Manufacturing

This industry comprises establishments primarily engaged in manufacturing communications equipment (except telephone apparatus, and radio and television broadcast, and wireless communications equipment).

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NAICS	SIC	Corresponding Index Entries
334290	3669	Alarm systems and equipment manufacturing
334290	3669	Automotive theft alarm systems manufacturing
334290	3669	Burglar alarm systems and equipment manufacturing
334290	3669	Car alarm manufacturing
334290	3669	Carbon monoxide detectors manufacturing
334290	3669	Controlling equipment, street light, manufacturing
334290	3669	Fire detection and alarm systems manufacturing
334290	3669	Intercom systems and equipment manufacturing
334290	3669	Railroad signaling equipment manufacturing
334290	3669	Remote control units (e.g., garage door, television) manufacturing
334290	3669	Signals (e.g., highway, pedestrian, railway, traffic) manufacturing
334290	3669	Sirens (e.g., air raid, industrial, marine, vehicle) manufacturing
334290	3669	Smoke detectors manufacturing
334290	3669	Traffic advisory and signalling systems manufacturing
334290	3669	Traffic signals manufacturing

33431 Audio and Video Equipment Manufacturing

334310 Audio and Video Equipment Manufacturing

This industry comprises establishments primarily engaged in manufacturing electronic audio and video equipment for home entertainment, motor vehicle, public address and musical instrument amplifications. Examples of products made by these establishments are video cassette recorders, televisions, stereo equipment, speaker systems, household-type video cameras, jukeboxes, and amplifiers for musical instruments and public address systems.

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NAICS	SIC	Corresponding Index Entries
334310	3651	Amplifiers (e.g., auto, home, musical instrument, public address) manufacturing
334310	3651	Automobile radio receivers manufacturing
334310	3651	Camcorders manufacturing
334310	3651	Car stereos manufacturing
334310	3651	Clock radios manufacturing
334310	3651	Coin-operated jukebox manufacturing
334310	3651	Compact disc players (e.g., automotive, household-type) manufacturing
334310	3651	Digital video disc players manufacturing
334310	3651	DVD (digital video disc) players manufacturing
334310	3651	Home stereo systems manufacturing
334310	3651	Home tape recorders and players (e.g., cartridge, cassette, reel) manufacturing
334310	3651	Home theater audio and video equipment manufacturing
334310	3651	Jukeboxes manufacturing
334310	3651	Loudspeakers manufacturing
334310	3651	Microphones manufacturing
334310	3651	Portable stereo systems manufacturing
334310	3651	Projection television manufacturing
334310	3651	Public address systems and equipment manufacturing
334310	3679	Radio headphones manufacturing
334310	3651	Radio receiving sets manufacturing
334310	3651	Speaker systems manufacturing
334310	3651	Tape players and recorders, household-type, manufacturing
334310	3651	Television (TV) sets manufacturing
334310	3651	TV (television) sets manufacturing
334310	3651	VCR (video cassette recorder) manufacturing
334310	3651	Video cameras, household-type, manufacturing
334310	3651	Video cassette recorders (VCR) manufacturing

33441 Semiconductor and Other Electronic Component Manufacturing

This industry comprises establishments primarily engaged in manufacturing semiconductors and other components for electronic applications. Examples of products made by these establishments are capacitors, resistors, microprocessors, bare and loaded printed circuit boards, electron tubes, electronic connectors, and computer modems.

334411 Electron Tube Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing electron tubes and parts (except glass blanks). Examples of products made by these establishments are cathode ray tubes (i.e., picture tubes), klystron tubes, magnetron tubes, and traveling wave tubes.

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334411	3671	Cathode ray tubes (CRT) manufacturing
334411	3671	CRT (cathode ray tube) manufacturing
334411	3671	Electron tube parts (e.g., bases, getters, guns) (except glass blanks) manufacturing
334411	3671	Electron tubes manufacturing
334411	3671	Klystron tubes manufacturing
334411	3671	Magnetron tubes manufacturing
334411	3671	Television picture tubes manufacturing
334411	3671	Traveling wave tubes manufacturing
334411	3671	Tubes, cathode ray, manufacturing
334411	3671	Tubes, electron, manufacturing
334411	3671	Tubes, klystron, manufacturing
334411	3671	Vacuum tubes manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing bare (i.e., rigid or flexible) printed circuit boards without mounted electronic components. These establishments print, perforate, plate, screen, etch, or photoprint interconnecting pathways for electric current on laminates.

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1997 Economic Census

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334412	3672	Circuit boards, printed, bare, manufacturing
334412	3672	Flexible wiring boards, bare, manufacturing
334412	3672	Printed circuit boards, bare, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing semiconductors and related solid state devices. Examples of products made by these establishments are integrated circuits, memory chips, microprocessors, diodes, transistors, solar cells and other optoelectronic devices.

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1997 Economic Census

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334413	3674	Diodes, solid-state (e.g., germanium, silicon), manufacturing
334413	3674	Fuel cells, solid-state, manufacturing
334413	3674	Gun effect devices manufacturing
334413	3674	Hall effect devices manufacturing
334413	3674	Hybrid integrated circuits manufacturing
334413	3674	Infrared sensors, solid-state, manufacturing
334413	3674	Integrated microcircuits manufacturing
334413	3674	Laser diodes manufacturing
334413	3674	LED (light emitting diode) manufacturing
334413	3674	Light emitting diodes (LED) manufacturing
334413	3674	Metal oxide silicon (MOS) devices manufacturing
334413	3674	Microcontroller chip manufacturing
334413	3674	Microprocessor chip manufacturing
334413	3674	Monolithic integrated circuits (solid-state) manufacturing
334413	3674	MOS (metal oxide silicon) devices manufacturing
334413	3674	Optoelectronic devices manufacturing
334413	3674	Photoelectric cells, solid-state (e.g., electronic eye), manufacturing
334413	3674	Photovoltaic devices, solid-state, manufacturing
334413	3674	Rectifiers, semiconductor, manufacturing
334413	3674	Semiconductor circuit networks (i.e., solid-state integrated circuits) manufacturing
334413	3674	Semiconductor devices manufacturing
334413	3674	Semiconductor dice and wafers manufacturing
334413	3674	Semiconductor memory chips manufacturing
334413	3674	Silicon wafers, chemically doped, manufacturing
334413	3674	Solar cells manufacturing
334413	3674	Static converters, integrated circuits, manufacturing
334413	3674	Thin film integrated circuits manufacturing
334413	3674	Thyristors manufacturing
334413	3674	Transistors manufacturing
334413	3674	Voltage regulators, integrated circuits, manufacturing
334413	3674	Wafers (semiconductor devices) manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing electronic fixed and variable capacitors and condensers.

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NAICS	SIC	Corresponding Index Entries
334414	3675	Capacitors, electronic, fixed and variable, manufacturing
334414	3675	Condensers, electronic, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing electronic resistors, such as fixed and variable resistors, resistor networks, thermistors, and varistors.

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1997 Economic Census

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334415	3676	Resistors, electronic, manufacturing
334415	3676	Thermistors (except industrial process-type) manufacturing
334415	3676	Varistors manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing electronic inductors, such as coils and transformers.

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1997 Economic Census

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NAICS	SIC	Corresponding Index Entries
334416	3677	Chokes for electronic circuitry manufacturing
334416	3677	Inductors, electronic component-type (e.g., chokes, coils, transformers), manufacturing
334416	3677	Telephone and telegraph transformers, electronic component-type, manufacturing
334416	3677	Transformers, electronic component-types, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing electronic connectors, such as coaxial, cylindrical, rack and panel, pin and sleeve, printed circuit and fiber optic.

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334417	3678	Coaxial connectors manufacturing
334417	3678	Connectors, electronic (e.g., coaxial, cylindrical, printed circuit, rack and panel), manufactur
334417	3678	Cylindrical connectors, electronic, manufacturing
334417	3678	Fiber optic connectors manufacturing
334417	3678	Planar cable connectors manufacturing
334417	3678	Rack and panel connectors manufacturing

This U.S. industry comprises establishments primarily engaged in loading components onto printed circuit boards or who manufacture and ship loaded printed circuit boards. Also known as printed circuit assemblies, electronics assemblies, or modules, these products are printed circuit boards that have some or all of the semiconductor and electronic components inserted or mounted and are inputs to a wide variety of electronic systems and devices.

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NAICS	SIC	Corresponding Index Entries
334418	3679	Loaded computer boards manufacturing
334418	3679	Loading printed circuit boards
334418	3679	Memory boards manufacturing
334418	3679	Peripheral controller boards manufacturing
334418	36M	Personal computer modems manufacturing
334418	3679	Printed circuit assemblies manufacturing
334418	3679	Printed circuit boards loading

This U.S. industry comprises establishments primarily engaged in manufacturing electronic components (except electron tubes; bare printed circuit boards; semiconductors and related devices; electronic capacitors; electronic resistors; coils, transformers and other inductors; connectors; and loaded printed circuit boards).

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NAICS	SIC	Corresponding Index Entries
334419	3679	Crystals and crystal assemblies, electronic, manufacturing
334419	3679	Filters, electronic component-type, manufacturing
334419	3679	Harness assemblies for electronic use manufacturing
334419	3679	Heads (e.g., recording, read/write), manufacturing
334419	3679	LCD (liquid crystal display) screen units manufacturing
334419	3679	Microwave components manufacturing
334419	3679	Needles, phonograph and styli, manufacturing
334419	3679	Piezoelectric crystals manufacturing
334419	3679	Piezoelectric devices manufacturing
334419	3679	Printed circuit laminates manufacturing
334419	3679	Quartz crystals, electronic application, manufacturing
334419	3679	Rectifiers, electronic component-type (except semiconductor), manufacturing
334419	3679	Resonant reed devices, electronic, manufacturing
334419	3679	Rheostats, electronic, manufacturing
334419	3679	Screens for liquid crystal display (LCD) manufacturing
334419	3679	Solenoids for electronic applications manufacturing
334419	3679	Switches for electronic applications manufacturing
334419	3679	Transducers (except pressure) manufacturing

33451 Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

This industry comprises establishments primarily engaged in manufacturing navigational, measuring, electromedical, and control instruments. Examples of products made by these establishments are aeronautical instruments, appliance regulators and controls (except switches), laboratory analytical instruments, navigation and guidance systems, and physical properties testing equipment.

334510 Electromedical and Electrotherapeutic Apparatus

This U.S. industry comprises establishments primarily engaged in manufacturing electromedical and electrotherapeutic apparatus, such as magnetic resonance imaging equipment, medical ultrasound equipment, pacemakers, hearing aids, electrocardiographs, and electromedical endoscopic equipment.

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1997 Economic Census

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NAICS	SIC	Corresponding Index Entries
334510	3845	Arc lamp units, electrotherapeutic (except infrared, ultraviolet), manufacturing
334510	3845	Audiological equipment, electromedical, manufacturing
334510	3845	Automated blood and body fluid analyzers (except laboratory) manufacturing
334510	3845	Bronchoscopes, electromedical, manufacturing
334510	3845	Carbon arc lamp units, electrotherapeutic (except infrared and ultraviolet), manufacturing
334510	3845	Cardiodynameter manufacturing
334510	3845	Cardiographs manufacturing
334510	3845	Cardiophone, electric, manufacturing
334510	3845	Cardioscope manufacturing
334510	3845	Cardiotachometer manufacturing
334510	3845	Colonscopes, electromedical, manufacturing
334510	3845	Cystoscopes, electromedical, manufacturing
334510	3845	Defibrilators manufacturing
334510	3845	Diagnostic equipment, electromedical, manufacturing
334510	3845	Diagnostic equipment, MRI (magnetic resonance imaging), manufacturing
334510	3845	Dialysis equipment, electromedical, manufacturing
334510	3845	Diathermy apparatus, electromedical, manufacturing
334510	3845	Diathermy units manufacturing
334510	3845	Electrocardiographs manufacturing
334510	3845	Electroencephalographs manufacturing
334510	3845	Electrogastrograph manufacturing
334510	3845	Electromedical diagnostic equipment manufacturing
334510	3845	Electromedical equipment manufacturing
334510	3845	Electromedical therapy equipment manufacturing
334510	3845	Electromyographs manufacturing
334510	3845	Electrotherapeutic apparatus manufacturing
334510	3845	Electrotherapy units manufacturing
334510	3845	Endoscopic equipment, electromedical (e.g., bronchoscopes, colonoscopes, cystoscopes), manufactu
334510	3845	Gastroscopes, electromedical, manufacturing
334510	3842	Hearing aids, electronic, manufacturing
334510	3845	Heart-lung machine, manufacturing
334510	3845	Laser equipment, electromedical, manufacturing
334510	3845	Laser systems and equipment, medical, manufacturing
334510	3845	Lithotripters manufacturing
334510	3845	Magnetic resonance imaging (MRI) medical diagnostic equipment manufacturing
334510	3845	Medical cleaning equipment, ultrasonic, manufacturing
334510	3845	Medical ultrasound equipment manufacturing
334510	3845	MRI (magnetic resonance imaging) medical diagnostic equipment manufacturing
334510	3845	Otoscopes, electromedical, manufacturing
334510	3845	Pacemakers manufacturing
334510	3845	Patient monitoring equipment (e.g., intensive care, coronary care unit) manufacturing
334510	3845	PET (position emission tomography) scanners manufacturing
334510	3845	Phonocardiographs manufacturing
334510	3845	Position emission tomography (PET) scanners manufacturing
334510	3845	Probes, electric medical, manufacturing
334510	3845	Respiratory analysis equipment, electromedical, manufacturing
334510	3845	Retinoscopes, electromedical, manufacturing
334510	3845	Sentinel, cardiac, manufacturing
334510	3845	Surgical support systems (e.g., heart-lung machines) (except iron lungs) manufacturing
334510	3845	TENS (transcutaneous electrical nerve stimulator) manufacturing
334510	3845	Transcutaneous electrical nerve stimulators (TENS) manufacturing
334510	3845	Ultrasonic medical equipment manufacturing
334510	3845	Ultrasonic scanning devices, medical, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing search, detection, navigation, guidance, aeronautical, and nautical systems and instruments. Examples of products made by these establishments are aircraft instruments (except engine), flight recorders, navigational instruments and systems, radar systems and equipment, and sonar systems and equipment.

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334511	3812	Acceleration indicators and systems components, aerospace type, manufacturing
334511	3812	Aeronautical systems and instruments manufacturing
334511	3812	Air traffic control radar systems and equipment manufacturing
334511	3812	Airborne navigational systems manufacturing
334511	3812	Aircraft flight instruments (except engine instruments) manufacturing
334511	3812	Airframe equipment instruments manufacturing
334511	3812	Airspeed instruments (aeronautical) manufacturing
334511	3812	Altimeters, aeronautical, manufacturing
334511	3812	Angle-of-attack instrumentation manufacturing
334511	3812	Angle-of-yaw instrumentation manufacturing
334511	3812	Artificial horizon instrumentation manufacturing
334511	3812	Bank and turn indicators and components (aeronautical instruments) manufacturing
334511	3812	Cabin environment indicators, transmitters, and sensors manufacturing
334511	3812	Compasses, gyroscopic and magnetic (except portable), manufacturing
334511	3812	Countermeasure sets (e.g., active countermeasures, jamming equipment) manufacturing
334511	3812	Distance measuring equipment (DME), aeronautical, manufacturing
334511	3812	Driftmeters, aeronautical, manufacturing
334511	3812	Electronic guidance systems and equipment manufacturing
334511	3812	Fathometers manufacturing
334511	3812	Fish finders (i.e., sonar) manufacturing
334511	3812	Flight and navigation sensors, transmitters, and displays manufacturing
334511	3812	Flight recorders (i.e., black boxes) manufacturing
334511	3812	Glide slope instrumentation manufacturing
334511	3812	Gyrocompasses manufacturing
334511	3812	Gyrogimbals manufacturing
334511	3812	Gyroscopes manufacturing
334511	3812	Heads-up display (HUD) systems, aeronautical, manufacturing
334511	3812	Horizon situation instrumentation manufacturing
334511	3812	HUD (heads-up display) systems, aeronautical, manufacturing
334511	3812	Hydrophones manufacturing
334511	3812	Inertial navigation systems, aeronautical, manufacturing
334511	3812	Infrared homing systems, aeronautical, manufacturing
334511	3812	Instrument landing system instrumentation, airborne or airport, manufacturing
334511	3812	Instruments, aeronautical, manufacturing
334511	3812	Light reconnaissance and surveillance systems and equipment manufacturing
334511	3812	Machmeters manufacturing
334511	3812	Nautical systems and instruments manufacturing
334511	3812	Navigational instruments manufacturing
334511	3812	Omnibearing instrumentation manufacturing
334511	3812	Pictorial situation instrumentation manufacturing
334511	3812	Position indicators (e.g., for landing gear, stabilizers), airframe equipment, manufacturing
334511	3812	Proximity warning (i.e., collision avoidance) equipment manufacturing
334511	3812	Radar detectors manufacturing
334511	3812	Radar systems and equipment manufacturing
334511	3812	Radio magnetic instrumentation (RMI) manufacturing
334511	3812	Rate-of-climb instrumentation manufacturing
334511	3812	Search and detection systems and instruments manufacturing
334511	3812	Sextants (except surveying) manufacturing
334511	3812	Sonabuoys manufacturing
334511	3812	Sonar fish finders manufacturing
334511	3812	Sonar systems and equipment manufacturing
334511	3812	Space vehicle guidance systems and equipment manufacturing
334511	3812	Speed, pitch, and roll navigational instruments and systems manufacturing
334511	3812	Taffrail logs manufacturing
334511	3812	Underwater navigational systems manufacturing
334511	3812	Warfare countermeasures equipment manufacturing
334511	3812	Wheel position indicators and transmitters, aircraft, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing automatic controls and regulators for applications, such as heating, air-conditioning, refrigeration and appliances.

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334512	3822	Air flow controllers (except valves), air-conditioning and refrigeration, manufacturing
334512	3822	Appliance controls manufacturing
334512	3822	Appliance regulators (except switches) manufacturing
334512	3822	Building services monitoring controls, automatic, manufacturing
334512	3822	Clothes dryer controls, including dryness controls, manufacturing
334512	3822	Combination limit and fan controls manufacturing
334512	3822	Combination oil and hydronic controls manufacturing
334512	3822	Computerized environmental control systems for buildings manufacturing
334512	3822	Damper operators (e.g., electric, pneumatic, thermostatic) manufacturing
334512	3822	Electric air cleaner controls, automatic, manufacturing
334512	3822	Electric heat proportioning controls, modulating controls, manufacturing
334512	3822	Electric space heater controls, automatic, manufacturing
334512	3822	Energy cutoff controls, residential and commercial types, manufacturing
334512	3822	Fan controls, temperature responsive, manufacturing
334512	3822	Flame safety controls for furnaces and boilers manufacturing
334512	3822	Float controls, residential and commercial types, manufacturing
334512	3822	Gas burner automatic controls (except valves) manufacturing
334512	3822	Gradual switches, pneumatic, manufacturing
334512	3822	Heating and cooling system controls, residential and commercial, manufacturing
334512	3822	Heating regulators manufacturing
334512	3822	Humidistats (e.g., duct, skeleton, wall) manufacturing
334512	3822	Humidity controls, air-conditioning-type, manufacturing
334512	3822	Hydronic circulator control, automatic, manufacturing
334512	3822	Hydronic limit control manufacturing
334512	3822	Hydronic limit, pressure, and temperature controls, manufacturing
334512	3822	Ice bank controls manufacturing
334512	3822	Ice maker controls manufacturing
334512	3822	Ignition controls for gas appliances and furnaces, automatic, manufacturing
334512	3822	In-built thermostats, filled system and bimetal types, manufacturing
334512	3822	Incinerator control systems, residential and commercial-type, manufacturing
334512	3822	Light responsive appliance controls manufacturing
334512	3822	Limit controls (e.g., air-conditioning, appliance, heating) manufacturing
334512	3822	Line or limit control for electric heat manufacturing
334512	3822	Liquid level controls, residential and commercial heating-type, manufacturing
334512	3822	Oven temperature controls, nonindustrial, manufacturing
334512	3822	Pneumatic relays, air-conditioning-type, manufacturing
334512	3822	Pressure controllers, air-conditioning system-type, manufacturing
334512	3822	Pressurestats manufacturing
334512	3822	Primary oil burner controls (e.g., cadmium cells, stack controls) manufacturing
334512	3822	Refrigeration controls, residential and commercial-type, manufacturing
334512	3822	Refrigeration thermostats manufacturing
334512	3822	Refrigeration/air-conditioning defrost controls manufacturing
334512	3822	Room thermostats manufacturing
334512	3822	Sequencing controls for electric heating equipment manufacturing
334512	3822	Static pressure regulators manufacturing
334512	3822	Steam pressure controls, residential and commercial heating-type, manufacturing
334512	3822	Surface burner controls, temperature, manufacturing
334512	3822	Switches, pneumatic positioning remote, manufacturing
334512	3822	Switches, thermostatic, manufacturing
334512	3822	Temperature controls, automatic, residential and commercial-types, manufacturing
334512	3822	Temperature sensors for motor windings manufacturing
334512	3822	Thermocouples, glass vacuum, manufacturing
334512	3822	Thermostats (e.g., air-conditioning, appliance, comfort heating, refrigeration) manufacturing
334512	3822	Time program controls, air-conditioning systems, manufacturing
334512	3822	Vapor heating controls manufacturing
334512	3822	Water heater controls manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing instruments and related devices for measuring, displaying, indicating, recording, transmitting, and controlling industrial process variables. These instruments measure, display or control (monitor, analyze, and so forth) industrial process variables, such as temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, concentration, and rotation.

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334513	3823	Absorption analyzers, industrial process type (e.g., infrared), manufacturing
334513	3823	Acidity (i.e., pH) instruments, industrial process type, manufacturing
334513	3823	Analyzers, industrial process control type, manufacturing
334513	3823	Annunciators, relay and solid-state types, industrial display, manufacturing
334513	3823	Boiler controls, industrial, power, and marine-type, manufacturing
334513	3823	Buoyancy instruments, industrial process-type, manufacturing
334513	3823	Chromatographs, industrial process-type, manufacturing
334513	3823	Combustion control instruments (except commercial, household furnace-type) manufacturing
334513	3823	Controllers for process variables (e.g., electric, electronic, mechanical, pneumatic operation)
334513	3823	Coulometric analyzers, industrial process-type, manufacturing
334513	3823	Data loggers, industrial process-type, manufacturing
334513	3823	Density and specific gravity instruments, industrial process-type, manufacturing
334513	3823	Differential pressure instruments, industrial process-type, manufacturing
334513	3823	Digital displays of process variables manufacturing
334513	3823	Display instruments, industrial process control-type, manufacturing
334513	3823	Draft gauges, industrial process-type, manufacturing
334513	3823	Electric and electronic controllers, industrial process-type, manufacturing
334513	3823	Electrodes used in industrial process measurement manufacturing
334513	3823	Electrolytic conductivity instruments, industrial process-type, manufacturing
334513	3823	Electromagnetic flowmeters manufacturing
334513	3823	Flow instruments, industrial process-type, manufacturing
334513	3823	Fluidic devices, circuits, and systems for process control, manufacturing
334513	3823	Gas analyzers, industrial process-type, manufacturing
334513	3823	Gas and liquid analysis instruments, industrial process-type, manufacturing
334513	3823	Gas chromatographic instruments, industrial process-type, manufacturing
334513	3823	Gas flow instrumentation, industrial process-type, manufacturing
334513	3823	Gauges (i.e., analog, digital), industrial process-type, manufacturing
334513	3823	Humidity instruments, industrial process-type, manufacturing
334513	3823	Hydrometers, industrial process-type, manufacturing
334513	3823	Hygrometers, industrial process-type, manufacturing
334513	3823	Indicators, industrial process control-type, manufacturing
334513	3823	Industrial process control instruments manufacturing
334513	3823	Infrared instruments, industrial process-type, manufacturing
334513	3823	Instruments for industrial process control manufacturing
334513	3823	Level and bulk measuring instruments, industrial process-type, manufacturing
334513	3823	Liquid analysis instruments, industrial process-type, manufacturing
334513	3823	Liquid concentration instruments, industrial process-type, manufacturing
334513	3823	Liquid level instruments, industrial process-type, manufacturing
334513	3823	Magnetic flow meters, industrial process-type, manufacturing
334513	3823	Manometers, industrial process-type, manufacturing
334513	3823	Measuring instruments, industrial process control-type, manufacturing
334513	3823	Mechanical measuring instruments, industrial process-type, manufacturing
334513	3823	Meters, industrial process control-type, manufacturing
334513	3823	Moisture meters, industrial process-type, manufacturing
334513	3823	Panelboard indicators, recorders, and controllers, receiver industrial process-type, manufacturi
334513	3823	Pneumatic controllers, industrial process type, manufacturing
334513	3823	Potentiometric instruments (except X-Y recorders), industrial process-type, manufacturing
334513	3823	Pressure gauges (e.g., dial, digital), industrial process-type, manufacturing
334513	3823	Pressure instruments, industrial process-type, manufacturing
334513	3823	Primary elements for process flow measurement (i.e., orifice plates) manufacturing
334513	3823	Primary process temperature sensors manufacturing
334513	3823	Process control instruments, industrial, manufacturing
334513	3823	Programmers, process-type, manufacturing
334513	3823	Pyrometers, industrial process-type, manufacturing
334513	3823	Recorders, industrial process control-type, manufacturing
334513	3823	Refractometers, industrial process-type, manufacturing
334513	3823	Resistance thermometers and bulbs, industrial process-type, manufacturing
334513	3823	Telemetering instruments, industrial process-type, manufacturing
334513	3823	Temperature instruments, industrial process-type (except glass and bimetal thermometers), manufa
334513	3823	Thermal conductivity instruments, industrial process-type, manufacturing
334513	3823	Thermistors, industrial process-type, manufacturing
334513	3823	Thermocouples, industrial process-type, manufacturing
334513	3823	Thermometers, filled system industrial process-type, manufacturing
334513	3823	Time cycle and program controllers, industrial process-type, manufacturing
334513	3823	Transmitters, industrial process control-type, manufacturing
334513	3823	Turbidity instruments, industrial process-type, manufacturing
334513	3823	Turbine flow meters, industrial process-type, manufacturing
334513	3823	Variable control instruments, industrial process-type, manufacturing
334513	3823	Viscosity instruments, industrial process-type, manufacturing
334513	3823	Water quality monitoring and control systems manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing totalizing (i.e., registering) fluid meters and counting devices. Examples of products made by these establishments are gas consumption meters, water consumption meters, parking meters, taxi meters, motor vehicle gauges, and fare collection equipment.

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334514	3824	Consumption meters (e.g., gas, water) manufacturing
334514	3824	Controls, revolution and timing instruments, manufacturing
334514	3824	Counter type registers manufacturing
334514	3824	Counters (e.g., electrical, electronic, mechanical), totalizing, manufacturing
334514	3824	Counters, revolution, manufacturing
334514	3824	Counting devices manufacturing
334514	3824	Electromechanical counters manufacturing
334514	3824	Electronic totalizing counters manufacturing
334514	3824	Fare collection equipment manufacturing
334514	3824	Gasmeters, consumption registering, manufacturing
334514	3824	Gasmeters, large capacity, domestic and industrial, manufacturing
334514	3824	Gasoline dispensing meters (except pumps) manufacturing
334514	38M	Gauges (e.g., oil pressure, water temperature, speedometer, tachometer), motor vehicle, manufact
334514	3824	Gauges for computing pressure-temperature corrections manufacturing
334514	3824	Impeller and counter driven flow meters manufacturing
334514	382M	Instrument panels, assembling gauges made in the same establishment
334514	3824	Integrating meters, nonelectric, manufacturing
334514	3824	Linear counters manufacturing
334514	3824	Liquid flow meters manufacturing
334514	3824	Magnetic counters manufacturing
334514	3824	Measuring wheels manufacturing
334514	3824	Metering devices (except electrical and industrial process control) manufacturing
334514	3824	Meters (except electrical and industrial process control) manufacturing
334514	3824	Meters, parking, manufacturing
334514	38M	Motor vehicle instruments (e.g., fuel level gauges, oil pressure, speedometers, tachometers, wat
334514	3824	Parking meters manufacturing
334514	3824	Pedometers manufacturing
334514	3824	Positive displacement meters manufacturing
334514	3824	Predetermined counters manufacturing
334514	3824	Production counters manufacturing
334514	3824	Propeller type meters with registers manufacturing
334514	3824	Registers, linear tallying, manufacturing
334514	3824	Rotary type meters, consumption registering, manufacturing
334514	3824	Tally counters manufacturing
334514	3824	Tallying meters (except clocks, electrical instruments, watches) manufacturing
334514	3824	Tank truck meters manufacturing
334514	3824	Taximeters manufacturing
334514	3824	Totalizing fluid meters manufacturing
334514	3824	Totalizing meters (except aircraft), consumption registering, manufacturing
334514	3824	Turbine meters, consumption registering, manufacturing
334514	3824	Watermeters, consumption registering, manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing instruments for measuring and testing the characteristics of electricity and electrical signals. Examples of products made by these establishments are circuit and continuity testers, volt meters, ohm meters, wattmeters, multimeters, and semiconductor test equipment.

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334515	3825	Alternator and generator testers manufacturing
334515	3825	Ampere-hour meters manufacturing
334515	3825	Analyzers for testing electrical characteristics manufacturing
334515	3825	Audiofrequency oscillators manufacturing
334515	3825	Audiometers (except medical) manufacturing
334515	3825	Automotive electrical engine diagnostic equipment manufacturing
334515	3825	Battery testers, electrical, manufacturing
334515	3825	Bridges, electrical (e.g., Kelvin, megohm, vacuum tube, Wheatstone), manufacturing
334515	3825	Circuit testers manufacturing
334515	3825	Current measuring equipment manufacturing
334515	3825	Decade boxes (i.e., capacitance, inductance, resistance) manufacturing
334515	3825	Demand meters, electric, manufacturing
334515	3825	Digital panel meters, electricity measuring, manufacturing
334515	3825	Digital test equipment (e.g., electronic and electrical circuits and equipment testing) manufact
334515	3825	Diode and transistor testers manufacturing
334515	3825	Distortion meters and analyzers manufacturing
334515	3825	Elapsed time meters, electronic, manufacturing
334515	3825	Electrical network analyzers manufacturing
334515	3825	Electrical power measuring equipment manufacturing
334515	3825	Electricity and electrical signal measuring instruments manufacturing
334515	3825	Electricity and electrical signal testing equipment manufacturing
334515	3825	Electron tube test equipment manufacturing
334515	3825	Electronic test equipment for testing electrical characteristics manufacturing
334515	3825	Energy measuring equipment, electrical, manufacturing
334515	3825	Field strength and intensity measuring equipment, electrical, manufacturing
334515	3825	Frequency meters (e.g., electrical, electronic, mechanical) manufacturing
334515	3825	Frequency synthesizers manufacturing
334515	3825	Function generators manufacturing
334515	3825	Galvanometers (except geophysical) manufacturing
334515	3825	Graphic recording meters, electric, manufacturing
334515	3825	Ignition testing instruments manufacturing
334515	3825	Impedance measuring equipment manufacturing
334515	3825	Indicating instruments, electric, manufacturing
334515	3825	Instrument shunts manufacturing
334515	3825	Instruments for measuring electrical quantities manufacturing
334515	3825	Instruments, electric (i.e., testing electrical characteristics), manufacturing
334515	3825	Integrated-circuit testers manufacturing
334515	3825	Integrating electricity meters manufacturing
334515	3825	Internal combustion engine analyzers (i.e., testing electrical characteristics) manufacturing
334515	3825	Kelvin bridges (i.e., electrical measuring instruments) manufacturing
334515	3825	Laboratory standards testing instruments (e.g., capacitance, electrical resistance, inductance)
334515	3825	Logic circuit testers manufacturing
334515	3825	Measuring equipment for electronic and electrical circuits and equipment manufacturing
334515	3825	Measuring instruments and meters, electric, manufacturing
334515	3825	Meters, electrical (i.e., graphic recording, panelboard, pocket, portable), manufacturing
334515	3825	Meters, power factor and phase angle, manufacturing
334515	3825	Microwave test equipment manufacturing
334515	3825	Multimeters manufacturing
334515	3825	Ohmmeters manufacturing
334515	3825	Oscillators (e.g., instrument type audiofrequency and radiofrequency) manufacturing
334515	3825	Oscilloscopes manufacturing
334515	3825	Phase angle meters manufacturing
334515	3825	Portable test meters manufacturing
334515	3825	Potentiometric instruments (except industrial process-type) manufacturing
334515	3825	Power factor meters manufacturing
334515	3825	Power measuring equipment, electrical, manufacturing
334515	3825	Pulse (i.e., signal) generators manufacturing
334515	3825	Radar testing instruments, electric, manufacturing
334515	3825	Radiofrequency measuring equipment manufacturing
334515	3825	Radiofrequency oscillators manufacturing
334515	3825	Recorders, oscillographic, manufacturing
334515	3825	Relays (except electrical, electronic), instrument, manufacturing
334515	3825	Resistance measuring equipment manufacturing
334515	3825	Semiconductor test equipment manufacturing
334515	3825	Shunts, instrument, manufacturing
334515	3825	Signal generators and averagers manufacturing
334515	3825	Spark plug testing instruments, electric, manufacturing
334515	3825	Spectrum analyzers manufacturing
334515	3825	Standards and calibration equipment for electrical measuring manufacturing
334515	3825	Standing wave ratio measuring equipment manufacturing
334515	3825	Stroboscopes manufacturing
334515	3825	Sweep generators manufacturing
334515	3825	Sweep oscillators manufacturing
334515	3825	Synchroscopes manufacturing
334515	3825	Tachometer generators manufacturing
334515	3825	Test equipment for electronic and electrical circuits and equipment manufacturing
334515	3825	Test sets, ignition harness, manufacturing
334515	3825	Voltmeters manufacturing
334515	3825	Watt-hour and demand meters, combined, manufacturing
334515	3825	Watt-hour and time switch meters, combined, manufacturing
334515	3825	Watt-hour meters, electric, manufacturing
334515	3825	Wattmeters manufacturing
334515	3825	Waveform measuring and/or analyzing equipment manufacturing
334515	3825	Wheatstone bridges (i.e., electrical measuring instruments) manufacturing
334515	3825	X-Y recorders (i.e., plotters (except computer peripheral equipment)) manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing instruments and instrumentation systems for laboratory analysis of the chemical or physical composition or concentration of samples of solid, fluid, gaseous, or composite material.

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334516	3826	Acidity (i.e., pH) measuring equipment, laboratory analysis-type, manufacturing
334516	3826	Amino acid analyzers, laboratory-type, manufacturing
334516	3826	Automatic chemical analyzers, laboratory-type, manufacturing
334516	3826	Blood bank process equipment manufacturing
334516	3826	Chromatographic instruments, laboratory-type, manufacturing
334516	3826	Chronoscopes manufacturing
334516	3826	Colorimeters, laboratory-type, manufacturing
334516	3826	Coulometric analyzers, laboratory-type, manufacturing
334516	3826	Densitometers, laboratory analytical, manufacturing
334516	3826	Differential thermal analysis instruments, laboratory-type, manufacturing
334516	3826	Electrolytic conductivity instruments, laboratory-type, manufacturing
334516	3826	Electron microprobes, laboratory-type, manufacturing
334516	3826	Electron microscopes manufacturing
334516	3826	Electron paramagnetic spin-type apparatus manufacturing
334516	3826	Electrophoresis instruments manufacturing
334516	3826	Elemental analyzers manufacturing
334516	3826	Flame photometers manufacturing
334516	3826	Gas analyzers, laboratory-type, manufacturing
334516	3826	Gas chromatographic instruments, laboratory-type, manufacturing
334516	3826	Hematology instruments manufacturing
334516	3826	Immunology instruments, laboratory, manufacturing
334516	3826	Infrared analytical instruments, laboratory-type, manufacturing
334516	3826	Laboratory analytical instruments (except optical) manufacturing
334516	3826	Liquid chromatographic instruments, laboratory-type, manufacturing
334516	3826	Magnetic resonance imaging (MRI) type apparatus (except medical diagnostic) manufacturing
334516	3826	Mass spectrometers manufacturing
334516	3826	Mass spectroscopy instrumentation manufacturing
334516	3826	Microbiology instruments manufacturing
334516	3826	Microprobes (e.g., electron, ion, laser, X-ray) manufacturing
334516	3826	Microscopes, electron and proton, manufacturing
334516	3826	Moisture analyzers, laboratory-type, manufacturing
334516	3826	Monochrometers, laboratory-type, manufacturing
334516	3826	Nephelometers (except meteorological) manufacturing
334516	3826	Neutron activation analysis instruments manufacturing
334516	3826	Osmometers manufacturing
334516	3826	Particle beam excitation instruments, laboratory-type, manufacturing
334516	3826	Particle size analyzers manufacturing
334516	3826	Photometers (except photographic exposure meters) manufacturing
334516	3826	Photonexcitation analyzers manufacturing
334516	3826	Polariscopes manufacturing
334516	3826	Polarizers manufacturing
334516	3826	Polarographic equipment manufacturing
334516	3826	Protein analyzers, laboratory-type, manufacturing
334516	3826	Redox (i.e., oxidation-reduction potential) instruments manufacturing
334516	3826	Refractometers, laboratory-type, manufacturing
334516	3826	Resonance instruments (i.e., laboratory-type) manufacturing
334516	3826	Sample analysis instruments (except medical) manufacturing
334516	3826	Specific ion measuring instruments, laboratory-type, manufacturing
334516	3826	Spectrofluorometers manufacturing
334516	3826	Spectrographs manufacturing
334516	3826	Spectrometers (e.g., electron diffraction, mass, NMR, Raman) manufacturing
334516	3826	Spectrophotometers (e.g., atomic absorption, atomic emission, flame, fluorescence, infrared, ram
334516	3826	Surface area analyzers manufacturing
334516	3826	Thermal analysis instruments, laboratory-type, manufacturing
334516	3826	Thermal conductivity instruments and sensors manufacturing
334516	3826	Thermogravimetric analyzers manufacturing
334516	3826	Titrimeters manufacturing
334516	3826	Turbidometers, laboratory-type, manufacturing
334516	3826	Ultraviolet-type analytical instruments manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing irradiation apparatus and tubes for applications, such as medical diagnostic, medical therapeutic, industrial, research and scientific evaluation. Irradiation can take the form of beta-rays, gamma-rays, X-rays, or other ionizing radiation.

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1997 Economic Census

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NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334517	3844	Beta-ray irradiation equipment manufacturing
334517	3845	Computerized axial tomography (CT/CAT) scanners manufacturing
334517	3845	CT/CAT (computerized axial tomography) scanners manufacturing
334517	3844	Fluoroscopes manufacturing
334517	3844	Fluoroscopic X-ray apparatus and tubes manufacturing
334517	3844	Gamma ray irradiation equipment manufacturing
334517	3844	Generators, X-ray, manufacturing
334517	3844	Irradiation apparatus and tubes (e.g., industrial, medical diagnostic, medical therapeutic, rese
334517	3844	Irradiation equipment manufacturing
334517	3844	Lamps, X-ray, manufacturing
334517	3844	Medical radiation therapy equipment manufacturing
334517	3844	Nuclear irradiation equipment manufacturing
334517	3844	Radium equipment manufacturing
334517	3844	Therapeutic X-ray apparatus and tubes (e.g., medical, industrial, research) manufacturing
334517	3844	Tubes, X-ray, manufacturing
334517	3844	X-ray apparatus and tubes (e.g., control, industrial, medical, research) manufacturing
334517	3844	X-ray generators manufacturing
334517	3844	X-ray irradiation equipment manufacturing
334517	3844	X-ray tubes manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing and/or assembling: clocks; watches; timing mechanisms for clockwork operated devices; time clocks; time and date recording devices; and clock and watch parts (except crystals), such as springs, jewels, and modules.

Go to:

1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334518	3873	Alarm clocks manufacturing
334518	3873	Appliance timers manufacturing
334518	3873	Chronographs manufacturing
334518	38M	Chronometers manufacturing
334518	3873	Clock materials and parts (except crystals) manufacturing
334518	3495	Clock or watch springs, precision, made from purchased wire
334518	3873	Clocks assembling
334518	3873	Clocks assembling from purchased components
334518	3873	Commercial timing mechanisms manufacturing
334518	3579	Dating devices and machines (except rubber stamps) manufacturing
334518	3579	Hand stamps (e.g., date, time), timing mechanism operated, manufacturing
334518	3873	Household-type timing mechanisms manufacturing
334518	3873	Mechanisms, clockwork operated device, manufacturing
334518	3873	Modules for clocks and watches manufacturing
334518	3873	Movements, watch or clock, manufacturing
334518	3495	Springs, clock and watch, made from purchased wire
334518	3579	Time clocks and time recording devices manufacturing
334518	3429	Time locks manufacturing
334518	3579	Time stamps containing clock mechanisms manufacturing
334518	3873	Timers for industrial use, clockwork mechanism, manufacturing
334518	3873	Timing mechanisms, clockwork, manufacturing
334518	3873	Wall clocks manufacturing
334518	3915	Watch jewels manufacturing
334518	3873	Watchcase manufacturing
334518	3873	Watches and parts (except crystals) manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing measuring and controlling devices (except search, detection, navigation, guidance, aeronautical, and nautical instruments and systems; automatic environmental controls for residential, commercial, and appliance use; instruments for measurement, display, and control of industrial process variables; totalizing fluid meters and counting devices; instruments for measuring and testing electricity and electrical signals; analytical laboratory instruments; watches, clocks, and parts; irradiation equipment; and electromedical and electrotherapeutic apparatus).

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334519	3829	Abrasion testing machines manufacturing
334519	3829	Accelerometers (except aerospace type) manufacturing
334519	3829	Actinometers, meteorological, manufacturing
334519	3829	Aircraft engine instruments manufacturing
334519	3829	Alidades, surveying, manufacturing
334519	3829	Automotive emissions testing equipment manufacturing
334519	3829	Barographs manufacturing
334519	3829	Barometers manufacturing
334519	3829	Ceilometers manufacturing
334519	3829	Chains, surveyor's, manufacturing
334519	3829	Compasses, portable magnetic-type, manufacturing
334519	3829	Count rate meters, nuclear radiation, manufacturing
334519	3829	Detectors, scintillation, manufacturing
334519	3829	Dosimetry devices manufacturing
334519	3829	Drafting instruments manufacturing
334519	3829	Dynamometers manufacturing
334519	3829	Evaporation meters manufacturing
334519	3829	Fatigue testing machines, industrial, mechanical, manufacturing
334519	3829	Fire detector systems, nonelectric, manufacturing
334519	3829	Fuel densitometers, aircraft engine, manufacturing
334519	3829	Fuel mixture indicators, aircraft engine, manufacturing
334519	3829	Fuel system instruments, aircraft, manufacturing
334519	3829	Fuel totalizers, aircraft engine, manufacturing
334519	3829	Galvanometers, geophysical, manufacturing
334519	3829	Gas leak detectors manufacturing
334519	3829	Geiger counters manufacturing
334519	3829	Geophysical instruments manufacturing
334519	3829	Hardness testing equipment manufacturing
334519	3829	Humidity instruments (except industrial process and air-conditioning type) manufacturing
334519	3829	Hydrometers (except industrial process-type) manufacturing
334519	3829	Hygrometers (except industrial process-type) manufacturing
334519	3829	Hygrothermographs manufacturing
334519	3829	Indicator testers, turntable, manufacturing
334519	3829	Instrumentation for reactor controls, auxiliary, manufacturing
334519	3829	Ion chambers manufacturing
334519	3829	Kinematic test and measuring equipment manufacturing
334519	3599	Leak detectors, water, manufacturing
334519	3829	Level gauges, radiation-type, manufacturing
334519	3829	Levels and tapes, surveying, manufacturing
334519	3829	Lie detectors manufacturing
334519	3829	Magnetometers manufacturing
334519	3829	Metal detectors manufacturing
334519	3829	Meteorologic tracking systems manufacturing
334519	3829	Meteorological instruments manufacturing
334519	3829	Nephoscopes manufacturing
334519	3829	Nuclear instrument modules manufacturing
334519	3829	Physical properties testing and inspection equipment manufacturing
334519	3829	Pitometers manufacturing
334519	3829	Polygraph machines manufacturing
334519	3829	Pressure and vacuum indicators, aircraft engine, manufacturing
334519	3829	Pressure transducers manufacturing
334519	3829	Pulse analyzers, nuclear monitoring, manufacturing
334519	3829	Pyrheliometers manufacturing
334519	3829	RADIAC (radioactivity detection, identification, and computation) equipment manufacturing
334519	3829	Radiation detection and monitoring instruments manufacturing
334519	3829	Radioactivity detection, identification, and computation (RADIAC) equipment manufacturing
334519	3829	Rain gauges manufacturing
334519	3829	Rods, surveyor's, manufacturing
334519	3829	Rules, slide, manufacturing
334519	3829	Sample changers, nuclear radiation, manufacturing
334519	3829	Scalers, nuclear radiation, manufacturing
334519	3829	Scintillation detectors manufacturing
334519	3829	Seismographs manufacturing
334519	3829	Seismometers manufacturing
334519	3829	Seismoscopes manufacturing
334519	3829	Sextants, surveying, manufacturing
334519	3829	Solarimeters manufacturing
334519	3829	Spectrometers (e.g., liquid scintillation, nuclear) manufacturing
334519	3829	Surveying instruments manufacturing
334519	3829	T-squares (drafting) manufacturing
334519	3829	Tapes, surveyor's, manufacturing
334519	3829	Templates, drafting, manufacturing
334519	3829	Tensile strength testing equipment manufacturing
334519	3829	Testers for checking hydraulic controls on aircraft manufacturing
334519	3829	Testing equipment (e.g., abrasion, shearing strength, tensile strength, torsion) manufacturing
334519	3829	Theodolites, surveying, manufacturing
334519	3829	Thermocouples (except industrial process, aircraft type, glass vacuum) manufacturing
334519	3829	Thermometer, liquid-in-glass and bimetal types (except medical), manufacturing
334519	3829	Thickness gauging instruments, ultrasonic, manufacturing
334519	3829	Thrust power indicators, aircraft engine, manufacturing
334519	3829	Torsion testing equipment manufacturing
334519	3829	Transducers, pressure, manufacturing
334519	3829	Transits, surveying, manufacturing
334519	3829	Ultrasonic testing equipment (except medical) manufacturing
334519	3829	Vibration meters, analyzers, and calibrators, manufacturing
334519	3829	Viscosimeters (except industrial process type) manufacturing
334519	3599	Water leak detectors manufacturing
334519	3829	Weather tracking equipment manufacturing
334519	3829	Whole body counters, nuclear, manufacturing
334519	3829	Wind direction indicators manufacturing

33461 Manufacturing and Reproducing Magnetic and Optical Media

This industry comprises establishments primarily engaged in (1) manufacturing optical and magnetic media, such as blank audio tape, blank video tape, and blank diskettes and/or (2) mass duplicating (i.e., making copies) audio, video, software, and other data on magnetic, optical, and similar media.

334611 Software Reproducing

This U.S. industry comprises establishments primarily engaged in mass reproducing computer software. These establishments do not generally develop any software, they mass reproduce data and programs on magnetic media, such as diskettes, tapes, or cartridges. Establishments in this industry mass reproduce products, such as CD-ROMs and game cartridges.

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1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334611	7372	CD-ROM, software, mass reproducing
334611	7372	Compact discs (i.e., CD-ROM), software, mass reproducing
334611	7372	Game cartridge software, mass reproducing
334611	7372	Games, computer software, mass reproducing
334611	7372	Prepackaged software, mass reproducing
334611	7372	Software, packaged, mass reproducing

This U.S. industry comprises establishments primarily engaged in mass reproducing audio and video material on magnetic or optical media. Examples of products mass reproduced by these establishments are audio compact discs, prerecorded audio and video cassettes, and laser discs.

Go to:

1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334612	3652	Cassette tapes, pre-recorded audio, mass reproducing
334612	3652	Compact discs, prerecorded audio, mass reproducing
334612	3652	Laser disks, prerecorded video, mass reproducing
334612	3652	Phonograph records manufacturing
334612	3652	Pre-recorded magnetic audio tapes and cassettes mass reproducing
334612	7819	Video cassettes, pre-recorded, mass reproducing
334612	7819	Video tape or disk mass reproducing

This U.S. industry comprises establishments primarily engaged in manufacturing magnetic and optical recording media, such as blank magnetic tape, blank diskettes, blank optical discs, hard drive media, and blank magnetic tape cassettes.

Go to:

1997 Economic Census

Bridge Between NAICS and SIC

NAICS Manual Table 1

NAICS	SIC	Corresponding Index Entries
334613	3695	Audiotape, blank, manufacturing
334613	3695	Blank tapes, audio and video, manufacturing
334613	3695	Compact discs, recordable or rewritable, blank, manufacturing
334613	3695	Computer software tapes and disks, blank, rigid and floppy, manufacturing
334613	3695	Diskettes, blank, manufacturing
334613	3695	Hard drive media manufacturing
334613	3695	Magnetic and optical media, blank, manufacturing
334613	3695	Magnetic recording media for tapes, cassettes, and disks, manufacturing
334613	3695	Magnetic tapes, cassettes and disks, blank, manufacturing
334613	3695	Tapes, magnetic recording (i.e., audio, data, video), blank, manufacturing
334613	3695	Video cassettes, blank, manufacturing
334613	3695	Video tapes, blank, manufacturing

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