333912

Air and Gas Compressor Manufacturing

Manufacturing › Machinery Manufacturing › Other General Purpose Machinery Manufacturing

SBA Size Standard

1,000 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

333

Subsector

Machinery Manufacturing

3339

Industry Group

Other General Purpose Machinery Manufacturing

333912

National Industry (This Code)

Air and Gas Compressor Manufacturing

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
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.

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

1,000 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 333912

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Manufacturing refrigeration and air-conditioning (except motor vehicle) systems and compressors--are classified in U.S. Industry 333415, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing;
Manufacturing motor vehicle air-conditioning systems and compressors--are classified in Industry 336390, Other Motor Vehicle Parts Manufacturing;
Manufacturing fluid power pumps and motors--are classified in U.S. Industry 333996, Fluid Power Pump and Motor Manufacturing;
Manufacturing agricultural spraying and dusting equipment--are classified in U.S. Industry 333111, Farm Machinery and Equipment Manufacturing;
Manufacturing laboratory vacuum pumps--are classified in U.S. Industry 339113, Surgical Appliance and Supplies Manufacturing; and
Manufacturing handheld pneumatic spray guns--are classified in U.S. Industry 333991, Power-Driven Handtool Manufacturing.

How to Use NAICS 333912 in SAM.gov

NAICS code 333912Air and Gas Compressor Manufacturing — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Other General Purpose Machinery Manufacturing space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of 1,000 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 333912.

Log in Entity Registration Goods & Services Add NAICS Code Enter 333912 Save

Frequently Asked Questions

What is NAICS code 333912?

NAICS code 333912 is 'Air and Gas Compressor Manufacturing', classified under the Manufacturing sector (NAICS 33). 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

What is the SBA small business size standard for NAICS code 333912?

The SBA defines a small business under NAICS code 333912 (Air and Gas Compressor Manufacturing) as one with 1,000 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 333912 in SAM.gov?

To register NAICS code 333912 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 333912 (Air and Gas Compressor Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Other General Purpose Machinery Manufacturing

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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