332721 — Precision Turned Product Manufacturing
Description
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.
Exclusions & Cross-References
- 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; and
- Machining parts, known as machine shops--are classified in Industry 332710, Machine Shops.
Overview Facts
| NAICS Code | 332721 |
|---|---|
| Industry Title | Precision Turned Product Manufacturing |
| SBA Size Standard | 500 employees |
| IRS PBA Code | 332700 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 332 → 3327 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3451 - Screw Machine Products (via SIC1987:3451→NAICS1997:332721→2002:332721→2007:332721→2012:332721→2017:332721→2022:332721)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 332721:
- 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.
- 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.
Related Industries in 3327
Frequently Asked Questions (FAQ)
Is 332721 a valid 2022 NAICS code?
NAICS 332721 is 'Precision Turned Product Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 500 employees.
What is the SBA size standard for NAICS 332721?
The SBA small business size standard for NAICS 332721 is 500 employees (based on employees).
What is the legacy SIC code mapping for 332721?
NAICS code 332721 maps to the legacy 1987 SIC codes: 3451 - Screw Machine Products.