333912 — Air and Gas Compressor Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing general purpose air and gas compressors, such as reciprocating compressors, centrifugal compressors, vacuum pumps (except laboratory), and nonagricultural spraying and dusting compressors and spray gun units (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 3563 - Air and Gas Compressors (via SIC1987:3563→NAICS1997:333912→2002:333912→2007:333912→2012:333912→2017:333912→2022:333912)
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 4310 — Compressors and Vacuum Pumps
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 333912 valid in 2022? ▾
Yes, 333912 is a valid 6-digit 2022 NAICS national industry code representing 'Air and Gas Compressor Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 333912? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,000 employees for NAICS code 333912 (Air and Gas Compressor Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 333912? ▾
According to official Census Bureau concordance tables, NAICS code 333912 (Air and Gas Compressor Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3563 - Air and Gas Compressors.
Related Pages & Tools
Further regulatory reference links for NAICS code 333912:
- 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 333912 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Air and Gas Compressor Manufacturing).
- 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.