NAICS Code 339991: Gasket, Packing, and Sealing Device Manufacturing
National industry
SBA small business size standard: 600 employees
Definition
This U.S. industry comprises establishments primarily engaged in manufacturing gaskets, packing, and sealing devices of all materials.
Government contracts for this product: PSC 5330 Packing and Gasket Materials
Code facts
- Part of
-
-
31-33
-
339
-
3399
- 33999
-
3399
-
339
-
31-33
- Contract awards
- 8,891 In the last 12 months
- Contract obligations
- $149,815,072 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 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
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 | $123,915,569 |
| FY2025 | $149,815,072 |
| FY2024 | $143,108,141 |
| FY2023 | $100,606,951 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Pioneer Industries, LLC | $16,225,146 | |
| 2 | Stein Seal Company | $4,462,751 | |
| 3 | Aviation Devices And Electronic Components, L.L.C. | $3,898,662 | |
| 4 | Jamaica Bearings CO. Inc. | $3,012,176 | |
| 5 | Triman Industries Inc. | $2,859,601 | |
| 6 | Seal Dynamics LLC | $2,743,524 | |
| 7 | Integrated Procurement Technologies | $2,717,780 | |
| 8 | Kirkhill, Inc. | $2,572,811 | |
| 9 | Defense Support Services, Inc. | $2,507,951 | |
| 10 | Argo Turboserve Corporation | $2,477,271 |
See the full FY2025 ranking of NAICS 339991 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $99,256,203 | |
| 2 | Department of the Navy | $10,744,357 | |
| 3 | Department of Homeland Security | $7,411,191 | |
| 4 | Department of the Army | $4,540,623 | |
| 5 | Department of Agriculture | $1,321,495 | |
| 6 | Department of Transportation | $279,920 | |
| 7 | Department of the Interior | $264,956 | |
| 8 | Defense Information Systems Agency | $39,000 | |
| 9 | National Aeronautics and Space Administration | $34,297 | |
| 10 | Department of State | $23,527 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 5330 Packing and Gasket Materials | $100,776,272 | |
| 2 | 5331 O-Ring | $6,164,677 | |
| 3 | 2040 Marine Hardware and Hull Items | $2,856,249 | |
| 4 | 5306 Bolts | $2,521,666 | |
| 5 | 5999 Miscellaneous Electrical and Electronic Components | $1,982,131 | |
| 6 | 5340 Hardware | $1,866,618 | |
| 7 | 4610 Water Purification Equipment | $1,486,766 | |
| 8 | 9320 Rubber Fabricated Materials | $1,050,599 | |
| 9 | 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment | $823,309 | |
| 10 | 4820 Valves, Nonpowered | $654,701 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | New York | $23,189,424 | |
| 2 | Pennsylvania | $11,499,207 | |
| 3 | Texas | $10,304,299 | |
| 4 | California | $9,596,811 | |
| 5 | Florida | $7,783,790 | |
| 6 | Ohio | $6,492,981 | |
| 7 | Virginia | $5,373,943 | |
| 8 | New Jersey | $4,116,841 | |
| 9 | Georgia | $3,157,015 | |
| 10 | Michigan | $3,127,032 | |
| 11 | Illinois | $2,404,009 | |
| 12 | Indiana | $2,042,527 | |
| 13 | Massachusetts | $1,839,662 | |
| 14 | Rhode Island | $1,723,831 | |
| 15 | Maryland | $1,688,397 | |
| 16 | Arizona | $1,384,549 | |
| 17 | Louisiana | $1,266,933 | |
| 18 | West Virginia | $1,049,039 | |
| 19 | Colorado | $981,928 | |
| 20 | Montana | $873,055 | |
| 21 | Tennessee | $817,448 | |
| 22 | Washington | $815,202 | |
| 23 | Connecticut | $681,741 | |
| 24 | North Carolina | $651,499 | |
| 25 | Kentucky | $588,632 | |
| 26 | New Hampshire | $579,734 | |
| 27 | Missouri | $535,528 | |
| 28 | Minnesota | $423,698 | |
| 29 | Wisconsin | $421,953 | |
| 30 | Nevada | $334,144 | |
| 31 | Alabama | $265,929 | |
| 32 | Oklahoma | $197,455 | |
| 33 | Oregon | $197,129 | |
| 34 | South Carolina | $183,547 | |
| 35 | Idaho | $183,064 | |
| 36 | Utah | $139,662 | |
| 37 | Arkansas | $79,236 | |
| 38 | Mississippi | $41,925 | |
| 39 | District of Columbia | $38,961 | |
| 40 | Maine | $19,298 | |
| 41 | Alaska | $14,705 | |
| 42 | New Mexico | $9,863 | |
| 43 | Vermont | $9,593 | |
| 44 | Delaware | $8,067 | |
| 45 | Kansas | $8,058 | |
| 46 | Nebraska | $5,651 | |
| 47 | South Dakota | $2,723 | |
| 48 | Iowa | $671 |
Show all 48
Shares are of everything obligated under NAICS 339991 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 37,321 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 339991?
NAICS 339991 is Gasket, Packing, and Sealing Device Manufacturing, a national industry in NAICS 31-33, Manufacturing.
What is the NAICS code for gaskets manufacturing?
The NAICS code for gaskets manufacturing is 339991, Gasket, Packing, and Sealing Device Manufacturing.
What is the NAICS code for oil seals manufacturing?
The NAICS code for oil seals manufacturing is 339991, Gasket, Packing, and Sealing Device Manufacturing.
What is the NAICS code for grease seals manufacturing?
The NAICS code for grease seals manufacturing is 339991, Gasket, Packing, and Sealing Device Manufacturing.
When did the size standard for NAICS 339991 last change?
The most recent Federal Register rule on record that names NAICS 339991 in the SBA's size standards is "Small Business Size Standards: Manufacturing and Industries With Employee-Based Size Standards in Other Sectors Except Wholesale Trade and Retail Trade" (88 FR 9970), published Feb 15, 2023 and effective Mar 17, 2023.
How much do federal agencies spend under NAICS 339991?
Federal contracts under NAICS 339991 obligated $149,815,072 in fiscal year 2025 and $517,445,733 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 339991?
The contractors with the most obligated under NAICS 339991 in fiscal years 2026 and 2027 are Pioneer Industries, LLC ($16,225,146); Stein Seal Company ($4,462,751); and Aviation Devices And Electronic Components, L.L.C. ($3,898,662).
Which agencies buy the most under NAICS 339991?
The agencies that obligated the most under NAICS 339991 in fiscal years 2026 and 2027 are Defense Logistics Agency ($99,256,203), Department of the Navy ($10,744,357) and Department of Homeland Security ($7,411,191).
Which PSC codes are used with NAICS 339991?
The PSC codes with the most obligated under NAICS 339991 in fiscal years 2026 and 2027 are 5330 Packing and Gasket Materials, 5331 O-Ring and 2040 Marine Hardware and Hull Items.
Where is the work under NAICS 339991 performed?
By place of performance, the states with the most contract obligations under NAICS 339991 over the last 12 months are New York ($23,189,424), Pennsylvania ($11,499,207) and Texas ($10,304,299).
What is the latest contract opportunity under NAICS 339991?
The latest contract opportunity under NAICS 339991 is Gasket, award notice from Land and Maritime (DLA), posted November 6, 2026.
On GovTribe
See everything under NAICS 339991
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