The Gasket, cataloged under National Stock Number 5330-00-135-7282, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is The Walworth Company. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-135-7282 |
| Primary Part Number | D5478-12-1 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Inside Corner Radius | 0.188 INCHES NOMINAL IN |
| Hardness Rating | 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Material Document and Classification | MIL-G-1149,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Width | 2.750 INCHES NOMINAL IN |
| Aperture Length | 7.500 INCHES NOMINAL IN |
| Center to Center Distance Between Bolt Holes Along Width | 2.062 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Material | RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL |
| Hole Diameter | 0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| 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 |
|---|---|
| D5478-12-1 PRIMARY | The Walworth Company (USA) |
| Reference | Meaning |
|---|---|
| 307651 | 5/9 Secondary reference The Walworth Company |
NSN 5330-00-135-7282 is a Gasket, manufactured by The Walworth Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-135-7282 has 1 manufacturer part number on file: D5478-12-1 (The Walworth Company).
2 possible matches (shared part number, not a government interchangeability claim): 2530-00-930-5624, 4820-01-592-1889. Verify interchangeability with system specifications before substitution.
Key specifications for D5478-12-1: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Inside Corner Radius: 0.188 INCHES NOMINAL IN; Hardness Rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL; Material Document and Classification: MIL-G-1149,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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.