2022 NAICS national industry in sector 31-33 Manufacturing
332721 Precision Turned Product Manufacturing
NAICS 332721 is the US industry code for precision turned product manufacturing. This U.S.
- Code
- 332721 (2022 NAICS)
- Title
- Precision Turned Product Manufacturing
- Part of
- Turned Product and Screw, Nut, and Bolt Manufacturing
- SBA small business limit
- Up to 500 employees
- Closest UK SIC
- 25990 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments known as precision turned manufacturers primarily engaged in machining precision products of all materials on a job or order basis. Generally precision turned product jobs are large volume using machines, such as automatic screw machines, rotary transfer machines, computer numerically controlled (CNC) lathes, or turning centers.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- 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.
- Machining parts, known as machine shops are classified in Industry 332710, Machine Shops.
Activities listed under 332721
The Census index assigns these 1 activities to this code. If your business matches one, this is your code.
- Precision turned product manufacturing
SBA size standard for 332721
To count as a small business for SBA loans and federal contracts under NAICS 332721, your business (including affiliates) must not exceed 500 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2599), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.