334513 — Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
Description
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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3823 - Industrial Instruments for Measurement, Display, and Control of Process Variables; and Related Products (via SIC1987:3823→NAICS1997:334513→2002:334513→2007:334513→2012:334513→2017:334513→2022:334513)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
- PSC 6695 — Combination and Miscellaneous Instruments
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 334513 valid in 2022? ▾
Yes, 334513 is a valid 6-digit 2022 NAICS national industry code representing 'Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 334513? ▾
The Small Business Administration (SBA) has established a small business size standard of 750 employees for NAICS code 334513 (Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables), calculated based on employees.
What is the legacy SIC equivalent for NAICS 334513? ▾
According to official Census Bureau concordance tables, NAICS code 334513 (Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3823 - Industrial Instruments for Measurement, Display, and Control of Process Variables; and Related Products.
Related Pages & Tools
Further regulatory reference links for NAICS code 334513:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 334513 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.