NAICS Code 333613: Mechanical Power Transmission Equipment Manufacturing
National industry
SBA small business size standard: 750 employees
Definition
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.
Government contracts for this product: PSC 2520 Vehicular Power Transmission Components and PSC 3040 Miscellaneous Power Transmission Equipment
Code facts
- Part of
-
-
31-33
-
333
-
3336
- 33361
-
3336
-
333
-
31-33
- Contract awards
- 3,550 In the last 12 months
- Contract obligations
- $559,872,080 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 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
- Joints, universal (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
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $281,062,839 |
| FY2025 | $559,872,080 |
| FY2024 | $201,292,499 |
| FY2023 | $468,018,719 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Allison Transmission Inc. | $141,604,589 | |
| 2 | BAE Systems Land And Armaments L.P. | $10,227,155 | |
| 3 | Chenega-Salas O'brien JV, LLC | $5,266,428 | |
| 4 | Idsc Holdings LLC | $5,225,125 | |
| 5 | Triman Industries Inc. | $4,089,974 | |
| 6 | PCX Aerosystems-Manchester, LLC | $4,000,555 | |
| 7 | Oshkosh Defense LLC | $3,372,174 | |
| 8 | Management Solutions, L.C. | $3,182,616 | |
| 9 | Kongsberg Maritime Inc. | $2,996,697 | |
| 10 | Kampi Components Co Inc. | $2,956,962 |
See the full FY2025 ranking of NAICS 333613 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $161,610,217 | |
| 2 | Defense Logistics Agency | $102,690,925 | |
| 3 | Department of the Navy | $11,958,502 | |
| 4 | Department of Homeland Security | $3,917,019 | |
| 5 | Department of Transportation | $412,936 | |
| 6 | Air Force | $315,252 | |
| 7 | National Aeronautics and Space Administration | $65,141 | |
| 8 | Department of State | $55,895 | |
| 9 | Department of Energy | $25,950 | |
| 10 | Smithsonian Institution | $11,002 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 2520 Vehicular Power Transmission Components | $153,326,925 | |
| 2 | 3040 Miscellaneous Power Transmission Equipment | $76,485,513 | |
| 3 | 3020 Gears, Pulleys, Sprockets, and Transmission Chain | $13,386,006 | |
| 4 | 7520 Office Devices and Accessories | $10,227,155 | |
| 5 | 3950 Winches, Hoists, Cranes, and Derricks | $5,266,428 | |
| 6 | 4910 Motor Vehicle Maintenance and Repair Shop Specialized Equipment | $5,085,247 | |
| 7 | 2010 Ship and Boat Propulsion Components | $3,164,332 | |
| 8 | 5930 Switches | $2,053,907 | |
| 9 | J028 Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components | $1,813,123 | |
| 10 | 2815 Diesel Engines and Components | $1,056,342 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Indiana | $142,321,286 | |
| 2 | Michigan | $13,955,707 | |
| 3 | New York | $10,040,190 | |
| 4 | Pennsylvania | $8,869,322 | |
| 5 | Wisconsin | $8,759,830 | |
| 6 | Ohio | $8,104,616 | |
| 7 | California | $7,651,944 | |
| 8 | Texas | $7,428,847 | |
| 9 | Virginia | $6,798,706 | |
| 10 | New Jersey | $6,409,139 | |
| 11 | Tennessee | $5,949,267 | |
| 12 | Florida | $5,126,439 | |
| 13 | Connecticut | $4,905,828 | |
| 14 | Maryland | $4,391,956 | |
| 15 | Louisiana | $4,368,967 | |
| 16 | Georgia | $3,496,005 | |
| 17 | Kentucky | $1,576,101 | |
| 18 | Massachusetts | $1,501,342 | |
| 19 | Arizona | $1,232,619 | |
| 20 | North Carolina | $1,166,096 | |
| 21 | Alabama | $1,164,341 | |
| 22 | South Carolina | $801,002 | |
| 23 | Illinois | $697,142 | |
| 24 | Delaware | $635,535 | |
| 25 | Maine | $502,115 | |
| 26 | Vermont | $479,859 | |
| 27 | Oklahoma | $467,538 | |
| 28 | Utah | $389,173 | |
| 29 | New Hampshire | $354,872 | |
| 30 | Nevada | $326,396 | |
| 31 | Colorado | $322,857 | |
| 32 | New Mexico | $292,335 | |
| 33 | Washington | $265,974 | |
| 34 | Missouri | $199,853 | |
| 35 | Oregon | $183,551 | |
| 36 | West Virginia | $169,082 | |
| 37 | Iowa | $163,293 | |
| 38 | Montana | $156,213 | |
| 39 | South Dakota | $146,347 | |
| 40 | Idaho | $115,831 | |
| 41 | Nebraska | $90,949 | |
| 42 | Mississippi | $74,674 | |
| 43 | District of Columbia | $23,202 | |
| 44 | Arkansas | $17,993 | |
| 45 | North Dakota | $14,761 | |
| 46 | Kansas | $6,399 | |
| 47 | Alaska | $4,032 |
Show all 47
Shares are of everything obligated under NAICS 333613 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 38,241 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 333613?
NAICS 333613 is Mechanical Power Transmission Equipment Manufacturing, a national industry in NAICS 31-33, Manufacturing.
What is the NAICS code for chains, power transmission, manufacturing?
The NAICS code for chains, power transmission, manufacturing is 333613, Mechanical Power Transmission Equipment Manufacturing.
What is the NAICS code for pulleys, power transmission, manufacturing?
The NAICS code for pulleys, power transmission, manufacturing is 333613, Mechanical Power Transmission Equipment Manufacturing.
What is the NAICS code for drive chains, bicycle and motorcycle, manufacturing?
The NAICS code for drive chains, bicycle and motorcycle, manufacturing is 333613, Mechanical Power Transmission Equipment Manufacturing.
When did the size standard for NAICS 333613 last change?
The most recent Federal Register rule on record that names NAICS 333613 in the SBA's size standards is "Small Business Size Standards for Manufacturing" (81 FR 4469), published Jan 26, 2016 and effective Feb 26, 2016.
How much do federal agencies spend under NAICS 333613?
Federal contracts under NAICS 333613 obligated $559,872,080 in fiscal year 2025 and $1,510,246,137 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 333613?
The contractors with the most obligated under NAICS 333613 in fiscal years 2026 and 2027 are Allison Transmission Inc. ($141,604,589); BAE Systems Land And Armaments L.P. ($10,227,155); and Chenega-Salas O'brien JV, LLC ($5,266,428).
Which agencies buy the most under NAICS 333613?
The agencies that obligated the most under NAICS 333613 in fiscal years 2026 and 2027 are Department of the Army ($161,610,217), Defense Logistics Agency ($102,690,925) and Department of the Navy ($11,958,502).
Which PSC codes are used with NAICS 333613?
The PSC codes with the most obligated under NAICS 333613 in fiscal years 2026 and 2027 are 2520 Vehicular Power Transmission Components; 3040 Miscellaneous Power Transmission Equipment; and 3020 Gears, Pulleys, Sprockets, and Transmission Chain.
Where is the work under NAICS 333613 performed?
By place of performance, the states with the most contract obligations under NAICS 333613 over the last 12 months are Indiana ($142,321,286), Michigan ($13,955,707) and New York ($10,040,190).
What is the latest contract opportunity under NAICS 333613?
The latest contract opportunity under NAICS 333613 is Gearshaft, multiple gears, award notice from Land and Maritime (DLA), posted November 6, 2026.
On GovTribe
See everything under NAICS 333613
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