Top DoD gasket, packing, and sealing device manufacturing contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $105.5M in net prime contract dollars under NAICS 339991, down 26.5% from $143.4M in the preceding 12 months. 816 prime contractors received positive obligations, and 94 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 339991
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Pioneer Industries, LLC | $11.3M | $10.9M | 10.5% | — |
| 2 | Aviation Devices and Electronic Components, L.L.C. | $4.1M | $4.1M | 3.9% | ▲ 3 |
| 3 | Jamaica Bearings Co. Inc. | $2.9M | $7.3M | 2.7% | ▼ 1 |
| 4 | Seal Dynamics LLC | $2.8M | $3.9M | 2.6% | ▲ 2 |
| 5 | Triman Industries Inc | $2.8M | $2.7M | 2.6% | ▲ 2 |
| 6 | ECI Defense Group, Inc. | $2.5M | $4.3M | 2.4% | ▼ 2 |
| 7 | Kirkhill, Inc. | $2.5M | $2.5M | 2.3% | ▲ 2 |
| 8 | Blade Industrial Products Inc | $2.4M | $787K | 2.2% | ▲ 32 |
| 9 | Argo Turboserve Corporation | $2.3M | $1.3M | 2.2% | ▲ 15 |
| 10 | Stein Seal Company | $2.2M | $490K | 2.1% | ▲ 57 |
| 11 | DBR Industries, Inc. | $2.1M | $2.7M | 2.0% | ▼ 3 |
| 12 | Integrated Procurement Technologies | $2.1M | $4.3M | 1.9% | ▼ 9 |
| 13 | Kampi Components Co Inc | $1.7M | $2.4M | 1.6% | ▼ 3 |
| 14 | H C Merchandisers, Inc. | $1.7M | $1.6M | 1.6% | ▲ 5 |
| 15 | Basic Rubber and Plastics Co. | $1.6M | $2.3M | 1.5% | ▼ 4 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Stein Seal Company$490K → $2.2M (+$1.7M) · now #10
- Blade Industrial Products Inc$787K → $2.4M (+$1.6M) · now #8
- Argo Turboserve Corporation$1.3M → $2.3M (+$1.1M) · now #9
Largest declines
- Jamaica Bearings Co. Inc.$7.3M → $2.9M (−$4.4M) · now #3
- Integrated Procurement Technologies$4.3M → $2.1M (−$2.2M) · now #12
- Beldam Crossley Limited$2.1M → $0 (−$2.1M) · no latest-period obligations
New to this market
154 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Sierra Nevada Company, LLC | Mar 5, 2026 | $282K |
| Bell Textron Inc | May 27, 2026 | $232K |
| Propulsion Systems, Inc. | Jan 8, 2026 | $161K |
| Lamassu General Trading LLC | May 28, 2026 | $142K |
| TGC Group Teknoloji Limited Sirketi | Dec 29, 2025 | $130K |
| Supporting With a Purpose LLC | Dec 11, 2025 | $105K |
| Maga Defense, LLC | Feb 19, 2026 | $97K |
| Motion Industries, Inc. | Dec 18, 2025 | $91K |
Where the money comes from
Funding sub-agencies within the Department of Defense, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Defense Logistics Agency | $94.3M | $129.1M | Down $34.8M (26.9%) |
| Department of the Navy | $8.8M | $13.3M | Down $4.5M (33.9%) |
| Department of the Army | $2.3M | $985K | Up $1.3M (131.3%) |
| Defense Information Systems Agency | $39K | $0 | New |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| SPE7L126P2541 | Pioneer Industries, LLC 8511802003!PARTS KIT,SEAL REPL | $5.3M | Jan 11, 2027 |
| N0010426FGW00 | Integrated Procurement Technologies FILTER ELEMENT,REVE | $1.4M | Apr 12, 2027 |
| SPE7L126C0051 | Triman Industries Inc 8511917415!RETAINER,SEAL | $1.0M | May 5, 2027 |
| SPRRA126P0002 | Stein Seal Company NSN: 5330-01-336-7194 | $2.1M | Jul 31, 2027 |
| N0010425CZA26 | OIL States Industries, Inc. SEAL, ASSEMBLY | $1.1M | Oct 26, 2027 |
Common questions
Who are the top DoD contractors for NAICS 339991?
In the latest 12 months, Pioneer Industries, LLC ($11.3M), Aviation Devices and Electronic Components, L.L.C. ($4.1M), Jamaica Bearings Co. Inc. ($2.9M) received the most DoD obligations for gasket, packing, and sealing device manufacturing.
How concentrated is this market?
The eight largest primes held 29.2% of positive obligations, and Pioneer Industries, LLC alone held 10.5%. 154 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 339991 contracts ending soon?
5 of the largest awards in this market reach their current end date in the next 18 months. The first is SPE7L126P2541 (Pioneer Industries, LLC, $5.3M obligated), ending Jan 11, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 339991 across all agencies
DHS · NAICS 339991
$9.9MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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