33451 Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

Official definition

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.

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Manufacturing global positioning system (GPS) equipment are classified in Industry 33422, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing.
• Manufacturing motor control switches and relays (including timing relays) are classified in Industry 33531, Electrical Equipment Manufacturing.
• Manufacturing switches for appliances are classified in Industry 33593, Wiring Device Manufacturing.
• Manufacturing optical instruments are classified in Industry 33331, Commercial and Service Industry Machinery Manufacturing.
• Manufacturing glass watch and clock crystals are classified in Industry 32721, Glass and Glass Product Manufacturing.
• Manufacturing plastics watch and clock crystals are classified in Industry 32619, Other Plastics Product Manufacturing.
• Manufacturing smartwatches are classified in Industry 33422, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing.
• Manufacturing medical thermometers and other nonelectrical medical apparatus are classified in Industry 33911, Medical Equipment and Supplies Manufacturing.

Source: US Census Bureau, 2022 NAICS cross-references.

Codes in 33451

• 334510Electromedical and Electrotherapeutic Apparatus Manufacturing
• 334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
• 334512Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
• 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
• 334514Totalizing Fluid Meter and Counting Device Manufacturing
• 334515Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
• 334516Analytical Laboratory Instrument Manufacturing
• 334517Irradiation Apparatus Manufacturing
• 334519Other Measuring and Controlling Device Manufacturing