NAICS Code 333613 — Mechanical Power Transmission Equipment Manufacturing
National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 4 national industries under 33361 (Engine, Turbine, and Power Transmission Equipment Manufacturing).
| Code | 333613 |
|---|---|
| Title | Mechanical Power Transmission Equipment Manufacturing |
| Level | National Industry (6-digit) |
| Edition | NAICS 2022 edition |
| SBA size standard | 750 employees |
Official definition (2022 NAICS)
This U.S. industry comprises establishments primarily engaged in manufacturing mechanical power transmission equipment (except motor vehicle and aircraft), such as plain bearings, clutches (except motor vehicle and electromagnetic industrial control), couplings, joints, and drive chains.
Is a business under 333613 "small"?
Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 333613 qualifies as a small business if it does not exceed 750 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.
Where 333613 sits in the hierarchy
| Level | Code | Title |
|---|---|---|
| Sector | 31-33 | Manufacturing |
| Subsector | 333 | Machinery Manufacturing |
| Industry Group | 3336 | Engine, Turbine, and Power Transmission Equipment Manufacturing |
| NAICS Industry | 33361 | Engine, Turbine, and Power Transmission Equipment Manufacturing |
| National Industry | 333613 | Mechanical Power Transmission Equipment Manufacturing |
Related SIC codes
Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.
| SIC code | Title |
|---|---|
3568 | Mechanical Power Transmission Equipment, Not Elsewhere Classified |
Related National Industry codes
333611— Turbine and Turbine Generator Set Units Manufacturing333612— Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing333618— Other Engine Equipment Manufacturing
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Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.