NAICS 334513

Overview

Federal statistical programs use the North American Industry Classification System (NAICS) to categorize establishments for collecting, analyzing, and publishing data about the U.S. economy. NAICS was developed under the Office of Management and Budget, adopted in 1997, and is jointly maintained with Statistics Canada and Mexico’s national statistics institute to enable cross‑country comparability. The current U.S. vintage is 2022. ¹

NAICS 334513 covers establishments primarily engaged in manufacturing instruments and related devices used to measure, display, indicate, record, transmit, and control industrial process variables. Official cross‑references distinguish this industry from closely related ones: totalizing meters and counting devices are in 334514, electrical characteristics test instruments in 334515, and laboratory analytical instruments in 334516. ²

See also on G2X:

• G2X — NAICS 334513 overview
• G2X — NAICS 334512
• G2X — NAICS 334515

What this NAICS covers

• Manufacturing of instruments for measuring and controlling industrial process variables (e.g., pressure, temperature, flow, level) used in production environments. ²
• Devices that display, indicate, and record process variable values for operators and control systems. ²
• Transmitters and related devices that send process variable signals for monitoring and control. ²
• Integrated control devices designed to adjust industrial processes based on measured variables. ²
• Instrumentation supporting process automation, including sensing and control components used on industrial lines. ²
• Related accessories when primarily for measuring, recording, transmitting, or controlling process variables. ²

Related NAICS and PSC codes

Cross‑industry boundaries (official distinctions)

• Environmental and appliance automatic controls are classified in NAICS 334512, not 334513. ²
• Totalizing meters and counting devices (including motor vehicle gauges) fall under NAICS 334514. ²
• Instruments for measuring/testing electrical characteristics are under NAICS 334515; analytical lab instruments are under NAICS 334516. ²

2022 NAICS status for federal data users

The Census Bureau is implementing the 2022 NAICS across its economic programs; 2022 Economic Census data and other series are being released on the 2022 basis, with full transition expected by the end of calendar year 2027 (program‑specific timelines apply). ³

Frequently asked questions

• What does NAICS 334513 include?
  It includes manufacturing of instruments and related devices that measure, display, record, transmit, and control industrial process variables used in factory and plant settings. Examples include process indicators, recorders, transmitters, and controllers for industrial variables. ²

• How does NAICS 334513 differ from NAICS 334512?
  NAICS 334512 covers automatic environmental controls for residential/commercial/appliance use, whereas NAICS 334513 addresses industrial process measurement and control devices used in production. ²

• Did NAICS 2022 change this industry?
  NAICS 2022 is the current vintage; Census programs began publishing data on the 2022 basis and are transitioning through 2027. Code‑specific change details are provided in program documentation and NAICS change lists. ³

• Which PSCs commonly describe supplies in this space?
  Process measurement and control products often align to PSC Category 66 items, such as PSC 6685 (pressure, temperature, and humidity measuring and controlling instruments), as defined in the official PSC Manual. ⁴

• What is the SBA small business size standard for NAICS 334513?
  SBA’s Table of Size Standards lists the current, employee‑based small business threshold for each manufacturing NAICS code. Refer to the latest table for the value in effect and updates over time.

Useful resources

• G2X — NAICS 334513 overview
• U.S. Census Bureau NAICS 2022 definition for 334513
• Census: Implementation timeline for 2022 NAICS (coverage, timing, and program transitions)
• Acquisition.gov: Product and Service Code (PSC) Manual (current edition)
• SBA: Table of Small Business Size Standards (manufacturing sector)

References

1. U.S. Census Bureau — Classifying Businesses: ECPC, OMB adoption of NAICS in 1997 and tri‑national development. https://www.census.gov/about/history/historical-censuses-and-surveys/census-programs-surveys/economic/classifying-businesses.html
2. U.S. Census Bureau — NAICS 2022 definition for 334513 (Instrument Manufacturing for Measuring and Controlling Industrial Process Variables). https://www.census.gov/naics/?input=334513&year=2022
3. U.S. Census Bureau — Implementation of the 2022 NAICS (timeline and program adoption). https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
4. Acquisition.gov — Product and Service Code (PSC) Manual, April 2025 (official PSC descriptors). https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf