332710

Machine Shops

Manufacturing › Fabricated Metal Product Manufacturing › Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing

SBA Size Standard

500 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

332

Subsector

Fabricated Metal Product Manufacturing

3327

Industry Group

Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing

332710

National Industry (This Code)

Machine Shops

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This industry comprises establishments known as machine shops primarily engaged in machining metal and plastic parts and parts of other composite materials on a job or order basis. Generally machine shop jobs are low volume using machine tools, such as lathes (including computer numerically controlled); automatic screw machines; and machines for boring, grinding, milling, and additive manufacturing.

✓ Small Business Eligibility at a Glance

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

Size Standard

500 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 332710

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:

Machining precision products, known as precision turned manufacturers--are classified in U.S. Industry 332721, Precision Turned Product Manufacturing;
Manufacturing metal bolts, nuts, screws, rivets, washers, and other industrial fasteners using machines, such as headers, threaders, and nut forming machines--are classified in U.S. Industry 332722, Bolt, Nut, Screw, Rivet, and Washer Manufacturing;
Manufacturing stampings (except motor vehicle)--are classified in U.S. Industry 332119, Metal Crown, Closure, and Other Metal Stamping (except Automotive);
Manufacturing weldments and fabricated metal plate products--are classified in U.S. Industry 332313, Plate Work Manufacturing;
Coating, engraving, and heat treating metals and metal formed products fabricated elsewhere--are classified in Industry 33281, Coating, Engraving, Heat Treating, and Allied Activities;
Manufacturing foundry patterns--are classified in U.S. Industry 332999, All Other Miscellaneous Fabricated Metal Product Manufacturing;
Manufacturing motor vehicle stampings--are classified in Industry 336370, Motor Vehicle Metal Stamping; and
Repairing industrial machinery and equipment--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance.

How to Use NAICS 332710 in SAM.gov

NAICS code 332710Machine Shops — 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 Machine Shops; Turned Product; and Screw, Nut, and Bolt 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 500 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 332710.

Log in Entity Registration Goods & Services Add NAICS Code Enter 332710 Save

Frequently Asked Questions

What is NAICS code 332710?

NAICS code 332710 is 'Machine Shops', classified under the Manufacturing sector (NAICS 33). This industry comprises establishments known as machine shops primarily engaged in machining metal and plastic parts and parts of other composite materials on a job or order basis. Generally machine

What is the SBA small business size standard for NAICS code 332710?

The SBA defines a small business under NAICS code 332710 (Machine Shops) as one with 500 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 332710 in SAM.gov?

To register NAICS code 332710 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 332710 (Machine Shops) to your NAICS code list. You may designate one code as your Primary NAICS code.

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Related NAICS Codes

Other codes in Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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