North American Industry Classification System (NAICS) code 334519 is used by federal buyers for market research, set-aside size standards, and reporting. Official titles come from the Census Bureau NAICS structure.
Official definition
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; irradiation equipment; and electromedical and electrotherapeutic apparatus).
Included activity examples
- Aircraft engine instruments manufacturing
- Automotive emissions testing equipment manufacturing
- Clocks assembling
- Meteorological instruments manufacturing
- Physical properties testing and inspection equipment manufacturing
- Polygraph machines manufacturing
- Radiation detection and monitoring instruments manufacturing
- Surveying instruments manufacturing
- Thermometers, liquid-in-glass and bimetal types (except medical), manufacturing
- Watches (except smartwatches) and parts (except crystals) manufacturing
- Official title
- Other Measuring and Controlling Device Manufacturing
- Code level
- 6
- Open opportunities
- 73 open · 360 active
SBA small-business size standard
600 employees
Employee-count basis · Special exception text applies
Check this standard and its exceptionsExcluded or separately classified activities
Official Census cross-references identify activities that belong under another North American Industry Classification System (NAICS) code.
Manufacturing automatic controls and regulators for applications, such as heating, air-conditioning, refrigeration and appliances--are classified in U.S. Industry 334512, Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use;
Manufacturing electromedical and electrotherapeutic apparatus--are classified in U.S. Industry 334510, Electromedical and Electrotherapeutic Apparatus Manufacturing;
Manufacturing glass watch and clock crystals--are classified in Industry 32721, Glass and Glass Product Manufacturing;
Manufacturing instruments and related devices that measure, display, or control (i.e., monitor or analyze) industrial process variables--are classified in U.S. Industry 334513, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables;
Manufacturing instruments for laboratory analysis of the physical composition or concentration of samples of solid, fluid, gaseous, or composite materials--are classified in U.S. Industry 334516, Analytical Laboratory Instrument Manufacturing;
Manufacturing instruments for measuring and testing the characteristics of electricity and electrical signals--are classified in U.S. Industry 334515, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals;
Manufacturing medical thermometers--are classified in U.S. Industry 339112, Surgical and Medical Instrument Manufacturing;
Manufacturing plastics watch and clock crystals--are classified in U.S. Industry 326199, All Other Plastics Product Manufacturing;
Manufacturing search, detection, navigation, guidance, aeronautical, and nautical systems and instruments--are classified in U.S. Industry 334511, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing;
Manufacturing smartwatches--are classified in Industry 334220, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing.
Manufacturing timing relays--are classified in U.S. Industry 335314, Relay and Industrial Control Manufacturing; and
Manufacturing totalizing (i.e., registering) fluid meters and counting devices, including motor vehicle gauges--are classified in U.S. Industry 334514, Totalizing Fluid Meter and Counting Device Manufacturing;
Manufacturing X-ray apparatus, tubes, or related irradiation apparatus--are classified in U.S. Industry 334517, Irradiation Apparatus Manufacturing;
Source and edition
2022 NAICS Manual definition and reference material from the U.S. Census Bureau.