NAICS 2022 industry USA Verified: Census NAICS 2022 · 2026-01-01
33351
NAICS 33351 — Metalworking Machinery Manufacturing
Metalworking Machinery Manufacturing
NAICS 33351 is the NAICS industry code for metalworking machinery manufacturing establishments in the United States. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
Child industry codes in 33351 (5)
333511
Industrial Mold Manufacturing
SBA: 500 333514
Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
SBA: 500 333515
Cutting Tool and Machine Tool Accessory Manufacturing
SBA: 500 333517
Machine Tool Manufacturing
SBA: 500 333519
Rolling Mill and Other Metalworking Machinery Manufacturing
SBA: 500 Exclusions & Cross-References
Activities classified under other official NAICS codes:
- manufacturing cutting dies (except metal cutting), hand tools (except power-driven), precision measuring devices, and saw blades and handsaws (See 332210 Cutlery and hand tool manufacturing (CAN))
- manufacturing machinery for cutting and forming wood (See 333245 Sawmill and woodworking machinery manufacturing (CAN))
- manufacturing power-driven hand tools, welding and soldering equipment, and industrial robots (See 333990 All other general-purpose machinery manufacturing (CAN))
Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.