San Diego Seal Inc.

San Diego Seal Inc., a for-profit small business manufacturer based in San Diego, California, delivers industrial sealing products—gaskets, seal kits, door seals, rubber sheet stock, and related components—to the Department of Defense as a prime contractor on purchase orders and delivery orders, competing predominantly in full-and-open procurements without set-aside designations, though approximately 30 percent of recent prime awards carry total small business set-aside markings.

The company's federal footprint centers on Defense Logistics Agency (DLA) supply chain operations. DLA Land and Maritime accounts for 280 awards valued at $11.3 million combined potential value; DLA Troop Support Construction and Equipment follows with 62 awards worth $11.9 million; and DLA Troop Support Hardware contributed 200 awards worth $2.7 million. The Department of the Navy Naval Sea Systems Command placed 171 awards valued at $2.4 million, primarily for gaskets, stern gate seals, and gas turbine parts supporting individual vessel maintenance—USS Mahan (DDG-72), USS Cole (DDG-67), USS Forrest Sherman (DDG-98), and USS New York (LPD-21) among others. These five customer segments account for 89 percent of award volume but only 76 percent of combined potential value; DLA Troop Support Construction and Equipment, despite representing just 7 percent of awards by count, anchors 38 percent of total dollars through large shaft cover delivery orders ($200,000–$350,000 each). Activity has declined modestly—85 awards in 2022 to 27 in 2026 year-to-date—with minimal recompete exposure in the next twenty-four months.

The vendor holds a portfolio of single-award indefinite delivery contracts (IDCs) with DLA Land and Maritime, most valued between $250,000 and $1.7 million, covering gaskets, door seals, and seal kits. The largest IDC, awarded November 15, 2022, carries a $7.5 million ceiling for shaft covers (NSN 4610095807) through November 2027, against which DLA issued twenty-three delivery orders totaling approximately $3.68 million through September 2025. Six additional IDCs with $250,000–$350,000 ceilings were awarded between July 2025 and December 2025 for gaskets, door seal kits, and plain seals, structured as automated procurement vehicles with guaranteed minimum quantities and estimated annual order frequencies. Concrete representative work includes a $71,280 total small business set-aside purchase order from Naval Sea Systems Command (February 2026) for stern gate seal solid rubber, neoprene, 5 inches wide × 2 inches height × 3/4 inch thick, per ASTM D2000 specification; a $85,336 no-set-aside delivery order from DLA Troop Support (September 2025) for shaft covers; and a $49,720 total small business set-aside purchase order from DLA Land and Maritime (March 2026) for 220 seal replacement kits (NSN 5330014429748).

The subcontractor footprint is minimal (1 percent of awards). Named primes include Vigor Marine LLC (November 2025, USS Gabrielle Giffords gaskets), Huntington Ingalls Incorporated (April 2025, LHA 8 detail design and construction long-lead-time material procurement), Metro Machine Corp (September 2024), and Life Cycle Engineering Inc. (July 2024, USS Kansas City scheduled preventive maintenance repairs with gasket and tie-down parts). San Diego Seal Inc. has been registered in SAM.gov since 2002 and holds no explicit 8(a), HUBZone, SDVOSB, WOSB, or other SBA set-aside certifications in the source material; the company competes as a small business across full-and-open and total small business set-aside categories, with the latter representing roughly 30 percent of the recent prime footprint. The primary North American Industry Classification System category is Gasket, Packing, and Sealing Device Manufacturing (339991), accounting for 528 of 845 awards; the dominant Product Service Code is Packing and Gasket Materials (604 awards), followed by Truck and Tractor Attachments and Ship and Marine Equipment.