333613: Mechanical Power Transmission Equipment Manufacturing
The code for makers of gears, speed reducers, couplings, clutches, plain bearings, and sprockets that move power from a motor to a load.
NAICS 333613 in numbers
DLA Land and Maritime dominates this market, accounting for 102,199 of the 122,572 awards on record and $1.70B of the $3.60B total. DLA Aviation and its Huntsville facility are the second and third largest buyers. Most awards go unrestricted, with 96,274 of 122,572 marked NONE. Small business set-asides account for 15,939 awards. The remaining set-asides are small: SDVOSBC at 1,780 awards, HZC at 129, WOSB at 105, 8(a) at 50, and SBP at 30.
The median award of $5,800 signals that most contracts are small orders for replacement parts and components rather than large production runs. With 1,959 distinct vendors competing for these awards, the market is fragmented. Firms deciding whether to pursue this code should expect low individual award values but high volume potential if they can win repeat business from DLA's supply chain.
Watch the 1,466 contracts ending within 12 months worth $290.82M. These represent recompete opportunities. The 212 active notices suggest steady procurement activity. Firms should monitor DLA Land and Maritime's upcoming solicitations closely, as this single buyer controls the majority of the market and will likely drive most new awards in the next year.
Everything behind these numbers for NAICS 333613
- Every buying office that awarded in this code, ranked by what they spent
- Every vendor that won, resolved to one record per business
- Every award back to FY2001, searchable and exportable
- Contracts ending soon, scored for how open the next round looks
- Every open notice on this code, with the buyer history beside it
The numbers above are open to anybody. The organized record behind them is what a plan pays for: every award, every buyer, every vendor, cleaned, resolved and read again every night.
Open right now under NAICS 333613
256 open notices right now, 38 closing within seven days. The newest 5:
| Posted | Notice | Buyer | NAICS | Set-aside | Due |
|---|---|---|---|---|---|
| Oct 28, 2026 | 30--CONNECTING LINK,RIGIDCombined Synopsis/Solicitation | DLA AVIATION | 333613 | Nov 5, 2026 | |
| Oct 28, 2026 | 30--CONNECTING LINK,RIGIDCombined Synopsis/Solicitation | DLA WEAPONS SUPPORT | 333613 | SBA | Nov 9, 2026 |
| Oct 28, 2026 | Cylinder AssemblyPresolicitation | DLA LAND WARREN | 333613 | SBA | Nov 9, 2026 |
| Oct 28, 2026 | 30--GEAR,HELICALCombined Synopsis/Solicitation | DLA WEAPONS SUPPORT | 333613 | SBA | Nov 9, 2026 |
| Oct 28, 2026 | 30--BALL JOINTCombined Synopsis/Solicitation | DLA WEAPONS SUPPORT | 333613 | Nov 12, 2026 |
What this code covers
Census defines 333613 as plants that make mechanical power transmission equipment other than the kinds built for motor vehicles and aircraft. The definition lists plain bearings, clutches other than vehicle and electromagnetic control types, couplings, joints, and drive chains. Industry usage adds gears, speed reducers, sprockets, pulleys, and shafts.
For defense that means shipboard reduction gear components and couplings, winch and hoist drives, antenna and turret drive parts, gearboxes for ground support and test equipment, and plain bearings and bushings bought by stock number. Ball and roller bearings sit in 332991. Vehicle and aircraft drivetrain parts have their own codes, though notices do not always follow that line.
What federal buyers typically ask for
DLA Land and Maritime posts most of the volume: plain bearings, bushings, gears, sprockets, couplings, and shafts by national stock number, often on long-term contracts. Navy supply activities and shipyards post reduction gear and coupling components for ship overhauls. Depots post gearbox and drive parts for repair lines.
Gears carry a quality grade and inspection requirement with charts, and the drawing usually names the material, heat treat, case depth, and hardness. Expect material and heat treat certs, magnetic particle inspection on steel gears, first article for a new source, and a certificate of conformance. Plain bearings cite a material specification for the bronze, steel, or composite liner. Steel and nickel alloy content brings the DFARS specialty metals clause. Critical ship and aviation drive parts often carry an approved source list. Drawings are commonly export controlled.
Small business set-asides are common on bushings, sprockets, and standard couplings. Critical gearing tends to go unrestricted to approved sources.
PSC codes that often pair with this NAICS
| PSC | Name | Why it matters |
|---|---|---|
| 3020 | Gears, Pulleys, Sprockets, and Transmission Chain | The core class for gearing and sprockets. |
| 3010 | Torque Converters and Speed Changers | Speed reducers and gearboxes. |
| 3040 | Miscellaneous Power Transmission Equipment | Couplings, clutches, and shafts. |
| 3120 | Bearings, Plain, Unmounted | Sleeve bearings and bushings. |
| 3130 | Bearings, Mounted | Pillow blocks and flanged units. |
| J030 | Maintenance and repair of mechanical power transmission equipment | Gearbox overhaul services. |
Group 30 is power transmission and group 31 is bearings. Watch both.
Before you bid
Check the gear quality grade and the inspection it requires. A grade that calls for charted inspection on equipment you do not own means an outside lab on every lot, and that has to be in your price.
Related guides
- For specialty suppliersHow LastAwarded fits a gear shop.
- Award historyWho won each stock number last.
- Recompete radarLong-term contracts coming due.
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