Seal Dynamics LLC
Hauppauge, NY Part of Heico Aerospace Corp
- UEI
- Y1M9BKYLXL58
- CAGE
- 5N582
- Primary NAICS
- 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
-
Its parent company, Heico Aerospace Corporat, ranks:
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 336412 Aircraft Engine and Engine Parts Manufacturing
- 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing
- 336414 Guided Missile and Space Vehicle Manufacturing
- 336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
- 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing
- 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers
- 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
- 423690 Other Electronic Parts and Equipment Merchant Wholesalers
- Corporate family
-
-
Parent
Hollywood, FL
C7RAXD2CDDF1
-
Parent
Hollywood, FL
C7RAXD2CDDF1
- SAM.gov registration date
- Physical address
- 2 Adams Ave, Hauppauge, NY 11788, USA
- Website
- sealdynamics.com
- Founded
- 1976
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Aerospace & Defense
- SIC code
- 37 Transportation Equipment
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $33,696,866 |
| FY2025 | $41,185,487 |
| FY2024 | $34,473,052 |
| FY2023 | $22,201,489 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $26,707,640 | |
| 2 | Department of the Navy | $6,912,582 | |
| 3 | Department of the Army | $76,644 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Packing assembly | Land and Maritime (DLA) | $7,500 | |
| Insulation blanket | Aviation (DLA) | $15,900 | |
| Packing, preformed | Land and Maritime (DLA) | $15,625 | |
| Spacer, sleeve | Aviation (DLA) | $4,185 | |
| Solenoid, electrical | Land and Maritime (DLA) | $938,100 |
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| HII Mission Technologies Corp | 47QFCA24F0043 | $774,800 | |
| HII Mission Technologies Corp | 47QFCA24F0043 | $774,800 | |
| V2X Aerospace LLC | N0001921F0094 | $66,750 | |
| V2X Aerospace LLC | N0001921F0094 | $93,500 | |
| V2X Aerospace LLC | N0001921F0094 | $49,939 |
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
About the company
Seal Dynamics LLC, a Hauppauge, New York-based subsidiary of Heico Aerospace Corp, supplies OEM-approved replacement parts and discrete aviation components to the Defense Logistics Agency as a prime contractor across a dense portfolio of single-award indefinite delivery contracts, competing exclusively in full-and-open procurements with no socioeconomic set-asides. The company operates from Smithtown and Hauppauge, New York, and functionally acts as a standing parts supplier rather than a platform services vendor—receiving over 1,100 awards in 2025 and 414 through mid-2026, with the vast majority of work consisting of task orders and delivery orders in the $3,000 to $40,000 range against multiple small-ceiling IDCs.
Seal Dynamics' capability portfolio centers on discrete aerospace and defense logistics components: gaskets, packing assemblies, seals, O-rings, electronic switches and push buttons, filter elements, thermal insulation materials, antenna components, strainer and retainer assemblies, and related hardware. Representative recent prime awards include a $1.4 billion nonrechargeable battery purchase order (DLA Land and Maritime, May 2026), a $911 thousand filter element order (DLA Aviation, May 2026), a $465 thousand electro-mechanical actuator order (DLA Aviation, May 2026), a $409 thousand BEACON/SONAR delivery order (DLA Aviation, April 2026), and a $316 thousand filter element order (DLA Aviation, June 2026). Seal Dynamics also holds a subcontractor role supplying radio frequency antenna components and hardened computing equipment to HII Mission Technologies Corp on the LOGIX (Logistics Intelligence Surveillance and Reconnaissance and NextGen Technology) contract.
Customer concentration is extreme. DLA accounts for approximately 98 percent of Seal Dynamics' recent award volume. DLA Land and Maritime leads with 4,730 awards carrying $240.4 million combined potential value, followed by DLA Aviation with 2,227 awards and $148.3 million. DLA Troop Support Hardware contributes 837 awards and $18.4 million. The Naval Supply Systems Command represents the only material non-DLA customer, with 47 awards totaling $12.3 million. This concentration reflects Seal Dynamics' designed role: a specialized standing supplier of discrete components under multiple small-ceiling indefinite delivery contracts rather than a broad federal contractor competing across diverse vehicle types or customer bases.
Seal Dynamics holds a dense portfolio of single-award indefinite delivery contracts with DLA Land and Maritime and DLA Aviation, each carrying $350,000 ceilings and one-year terms awarded throughout 2026. Notable parent vehicles include IDC SPE5EY19D0549 (91 task orders, $711 thousand combined value), IDC SPE7L122D5067 (57 task orders, $158 thousand), IDC SPE4A716D5361 (20 task orders, $125 thousand), NAVAIR Strategic Sourcing for CMMARS (18 task orders), and IDC SPE4A518D5004 (16 task orders, $128 thousand). These vehicles tile across component categories: packing assembly, seal assembly, gasket, O-ring, push switch, filter element, thermal insulation, air cleaner intake, circuit card assembly, and related discrete items. The company does not compete on government-wide acquisition contracts, agency-wide IDIQs, or GSA Schedules; its footprint exists entirely within DLA's standing component supply structure.
Activity has grown from 826 awards in 2023 to 1,132 in 2025, though 2026 shows 414 awards through mid-year (tracking to approximately 800–900 for the full year). Within the next twenty-four months, 198 awards carrying combined potential value of $16.2 million face recompete. Top NAICS codes are Gasket, Packing, and Sealing Device Manufacturing (2,344 awards), Other Electronic Component Manufacturing (1,187 awards), and Other Aircraft Parts and Auxiliary Equipment Manufacturing (536 awards). Top PSCs are Packing and Gasket Materials (2,641 awards), Switches (1,681 awards), and O-Ring (317 awards). Seal Dynamics holds no prime contracts outside the DLA portfolio visible in the recent award data and operates as a captive supplier within DLA's discrete component procurement ecosystem rather than as a generalist federal contractor.
Quick answers
Is Seal Dynamics LLC registered in SAM.gov?
Yes. Seal Dynamics LLC's SAM.gov registration is active through July 29, 2027.
How much has Seal Dynamics LLC received in federal contracts?
Federal contracts obligated $41,185,487 to Seal Dynamics LLC in fiscal year 2025 and $131,556,894 in fiscal years 2023 through 2027.
How does Seal Dynamics LLC rank among federal contractors?
Seal Dynamics LLC's parent company, Heico Aerospace Corporat, ranked #1 in PSC 2940, #1 in PSC 5930 and #5 in PSC 2945 in FY2025.
What is Seal Dynamics LLC's most recent federal award?
Seal Dynamics LLC's most recent federal contract award is Packing assembly (SPE7L326P5047), from Land and Maritime (DLA), on July 22, 2026.
On GovTribe
See Seal Dynamics LLC's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors