NAICS 339991: Gasket, Packing, and Sealing Device Manufacturing

Gasket, Packing, and Sealing Device Manufacturing is NAICS code 339991. A business is small under it with 600 employees or fewer. 22 federal contracts are open on SAM.gov under this code right now.

SBA size standard
600 employees or fewer
Open contracts now
22
Federal spending, FY2025
$149.4 million
Share won by small businesses
67%
Small businesses registered
403

Open federal contracts for gasket, packing, and sealing device manufacturing

Most open notices under this code are Defense supply orders for specific parts, usually limited to approved sources.

  • SEAL INSTALL TOOL,A

    Dept of Defense · Defense Logistics Agency

    Manufactured parts & equipment

    Due in 2 daysOct 6, 2026

  • PACKING,PREFORMED

    Dept of Defense · Defense Logistics Agency

    Manufactured parts & equipment

    Due in 2 daysOct 6, 2026

  • SEAL,PLAIN

    Dept of Defense · Defense Logistics Agency

    Manufactured parts & equipmentSmall business

    Due in 2 daysOct 6, 2026

  • GASKET

    Dept of Defense · Defense Logistics Agency

    Manufactured parts & equipmentSmall business

    Due in 3 daysOct 7, 2026

  • PACKING WITH RETAINER

    Dept of Defense · Defense Logistics Agency

    Manufactured parts & equipmentSmall business

    Due in 4 daysOct 8, 2026

  • SEAL,NONMETALLIC SPECI

    Dept of Defense · Defense Logistics Agency

    Manufactured parts & equipment

    Due in 4 daysOct 8, 2026

See all 22 open contracts under NAICS 339991 →

What NAICS 339991 covers

The Census Bureau's NAICS index lists these kinds of work under 339991:

  • Coaxial mechanical face seals manufacturing
  • Compression packings manufacturing
  • Gasket, packing, and sealing devices manufacturing
  • Gaskets manufacturing
  • Grease seals manufacturing
  • Molded packings and seals manufacturing
  • Oil seals manufacturing
  • Seals, grease or oil, manufacturing

Read the full definition, including what's excluded, on census.gov.

SBA size standard for 339991

To count as a small business for a contract assigned NAICS 339991, your business must have 600 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 gasket, packing, and sealing device manufacturing

Agencies that awarded the most under NAICS 339991 over the last three fiscal years, per USAspending.gov:

AgencyObligated
Defense Logistics Agency$355.1 million
Department of the Navy$30.4 million
U.S. Coast Guard$19.3 million
Department of the Army$2.6 million
Agricultural Research Service$1.8 million
Federal Aviation Administration$870,905
Bureau of Reclamation$685,751
Department of State$239,890

Open notices right now come from Dept of Defense (93).

Set-asides on open 339991 contracts

  • Total small business set-aside: 52
  • No set-aside (full and open): 39
  • Women-owned set-aside: 2

Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.

Your competition

403 businesses with active SAM.gov registrations are rated small under NAICS 339991, most of them in Texas (49), California (46), Florida (29), New York (21) and Ohio (20). Look any of them up with the free CAGE code and UEI lookup.

Federal spending under 339991 by year

Fiscal yearContract obligations
FY2024$143.1 million
FY2025$149.4 million
FY2026$118.8 million
FY2027 (so far)$0

Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.

Related NAICS codes

Frequently asked questions

What is NAICS code 339991?

339991 is the 2022 NAICS code for Gasket, Packing, and Sealing Device Manufacturing. The Census Bureau's index lists work such as coaxial mechanical face seals manufacturing, compression packings manufacturing, gasket, packing, and sealing devices manufacturing under it. Federal contracting uses the 2022 codes.

What is the SBA size standard for NAICS 339991?

600 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 gasket, packing, and sealing device manufacturing?

Yes. 22 federal contract opportunities under NAICS 339991 are open on SAM.gov right now. Agencies obligated about $149.4 million under this code in fiscal year 2025, according to USAspending.gov.

How do I add NAICS code 339991 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

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.