The Gasket, cataloged under National Stock Number 5330-00-239-3603, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-239-3603 |
| Primary Part Number | 820-2178730-4 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.094 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | HOLLOW |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Aperture Diameter | 2.312 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 820-2178730-4 | Triumph Thermal Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 820-2178730-4 | 5/1 Secondary reference Naval Sea Systems Command |
| U5310-02500SED | 3/1 Design control — primary reference Triumph Thermal Systems, Llc |
| 820-2178730PC4 | 5/2 Secondary reference U.S. Government activity |
| 820-2178730REVCP64C4 | 5/1 Secondary reference U.S. Government activity |
NSN 5330-00-239-3603 is a Gasket, manufactured by Triumph Thermal Systems, Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-239-3603 has 1 manufacturer part number on file: 820-2178730-4 (Triumph Thermal Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-413-8943. Verify interchangeability with system specifications before substitution.
Key specifications for 820-2178730-4: Cross-Sectional Thickness: 0.094 INCHES NOMINAL IN; Cross-Sectional Shape Style: HOLLOW; Outside Diameter: 2.500 INCHES NOMINAL IN; Aperture Diameter: 2.312 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.