NAICS 333613: Mechanical Power Transmission Equipment Manufacturing
Mechanical Power Transmission Equipment Manufacturing is NAICS code 333613. A business is small under it with 750 employees or fewer. 35 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- 750 employees or fewer
- Open contracts now
- 35
- Federal spending, FY2025
- $367.1 million
- Share won by small businesses
- 46%
- Small businesses registered
- 335
Open federal contracts for mechanical power transmission equipment manufacturing
Most open notices under this code are Defense supply orders for specific parts, usually limited to approved sources.
- GEAR,SPUR
Due in 2 daysOct 6, 2026
- GEARSHAFT,SPUR
Due in 2 daysOct 6, 2026
- CYLINDER,ACTUATING,LIN
Due in 2 daysOct 6, 2026
- SHAFT,TAPE SHEAVE
Due in 2 daysOct 6, 2026
- SHAFT,SHOULDERED
Due in 2 daysOct 6, 2026
- CYLINDER ASSEMBLY,ACTU
Due in 2 daysOct 6, 2026
What NAICS 333613 covers
The Census Bureau's NAICS index lists these kinds of work under 333613:
- Ball joints (except aircraft, motor vehicle) manufacturing
- Bearings, plain (except internal combustion engine), manufacturing
- Bushings, plain (except internal combustion engine), manufacturing
- Chains, power transmission, manufacturing
- Collars, shaft for power transmission equipment, manufacturing
- Couplings, mechanical power transmission, manufacturing
- Drive chains, bicycle and motorcycle, manufacturing
- Joints, swivel (except aircraft, motor vehicle), manufacturing
- Pulleys, power transmission, manufacturing
- Railroad car journal bearings, plain, manufacturing
- Sheaves, mechanical power transmission, manufacturing
- Sprockets, power transmission equipment, manufacturing
- Universal joints (except aircraft, motor vehicle) manufacturing
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 333613
To count as a small business for a contract assigned NAICS 333613, your business must have 750 employees or fewer. Employees are averaged over the last 24 months.
From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.
Who buys mechanical power transmission equipment manufacturing
Agencies that awarded the most under NAICS 333613 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Defense Logistics Agency | $414.2 million |
| Department of the Army | $219.7 million |
| Department of the Navy | $38.2 million |
| U.S. Coast Guard | $16.1 million |
| Department of the Air Force | $553,945 |
| Federal Aviation Administration | $408,236 |
| Bureau of Reclamation | $352,017 |
| Department of State | $256,067 |
Open notices right now come from Dept of Defense (106).
Set-asides on open 333613 contracts
- No set-aside (full and open): 52
- Total small business set-aside: 41
- Women-owned set-aside: 7
- Service-disabled veteran-owned set-aside: 6
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Your competition
335 businesses with active SAM.gov registrations are rated small under NAICS 333613, most of them in Florida (31), California (28), Texas (27), Ohio (21) and Virginia (20). Look any of them up with the free CAGE code and UEI lookup.
Federal spending under 333613 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $176.6 million |
| FY2025 | $367.1 million |
| FY2026 | $146.5 million |
| FY2027 (so far) | $0 |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Related NAICS codes
- 333611 Turbine and Turbine Generator Set Units Manufacturing
- 333612 Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
- 333618 Other Engine Equipment Manufacturing
Frequently asked questions
What is NAICS code 333613?
333613 is the 2022 NAICS code for Mechanical Power Transmission Equipment Manufacturing. The Census Bureau's index lists work such as ball joints (except aircraft, motor vehicle) manufacturing, bearings, plain (except internal combustion engine), manufacturing, bushings, plain (except internal combustion engine), manufacturing under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 333613?
750 employees or fewer. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.
Are there government contracts for mechanical power transmission equipment manufacturing?
Yes. 35 federal contract opportunities under NAICS 333613 are open on SAM.gov right now. Agencies obligated about $367.1 million under this code in fiscal year 2025, according to USAspending.gov.
How do I add NAICS code 333613 to my SAM.gov registration?
Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.
Keep going
- Search other NAICS codes by keyword or company
- How to choose NAICS codes for government contracts
- NAICS codes with the most open federal contracts
FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.