NAICS 332991: Ball and Roller Bearing Manufacturing — Federal Contracts

What NAICS 332991 covers

The North American Industry Classification System (NAICS) is the standard the federal government uses to classify the industry of every contractor and every procurement. NAICS 332991 identifies businesses primarily engaged in ball and roller bearing manufacturing. When a contracting officer publishes a solicitation on SAM.gov, they tag it with the NAICS code that best matches the work — which is why getting your NAICS portfolio right inside SAM is the single most important step for showing up in agency searches.

Who buys NAICS 332991?

The federal agencies awarding the most contract value to vendors in this NAICS, based on 6 contractors tracked in the Mindy contractor database:

1. 1Defense Logistics Agency
2. 2Defense Advanced Research Projects Agency (DARPA)
3. 3Defense Information Systems Agency (DISA)
4. 4Defense Microelectronics Activity (Dmea)
5. 5Departmental Offices

Source: aggregated from the Mindy contractor database (prime contractor disclosures via SBA + agency directories).

Top contractors in NAICS 332991

The largest prime contractors associated with NAICS 332991, ranked by total reported federal contract value. These are your most likely incumbents — and your most likely teaming partners on recompetes:

1. 1
   Northrop Grumman Systems Corporation

   $8.4B total reported value
2. 2
   Goodrich Corporation

   $325.9M total reported value
3. 3
   Lord CORP

   $20.9M total reported value
4. 4
   Lord Corporation

   $8.6M total reported value
5. 5
   Thyssenkrupp Rothe Erde USA INC.

   $1.0M total reported value
6. 6
   Industrial Tectonics Bearings Corporation

   $773K total reported value

Values reflect each contractor's aggregate reported federal contract value (across all of their NAICS codes, not just 332991). Use as a ranking signal, not as a per-NAICS award total.