The Gasket, cataloged under National Stock Number 5330-01-020-3135, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-020-3135 |
| Primary Part Number | GA25-136-8-E |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.048 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Style Designator | CIRCULAR |
| Material Document and Classification | MIL-C-6183,TY 1,CL 2,GR C MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 3.750 INCHES NOMINAL IN |
| Aperture Diameter | 2.266 INCHES MINIMUM AND 2.282 INCHES MAXIMUM IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.000 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC AND CORK OVERALL |
| Hole Diameter | 0.406 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 |
|---|---|
| GA25-136-8-E PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| GV25-136-8-E | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 5330-01-020-3135 is a Gasket, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-020-3135 has 1 manufacturer part number on file: GA25-136-8-E (Automatic Switch Company Dba Asco).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-286-0394. Verify interchangeability with system specifications before substitution.
Key specifications for GA25-136-8-E: Cross-Sectional Thickness: 0.048 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL; Style Designator: CIRCULAR; Material Document and Classification: MIL-C-6183,TY 1,CL 2,GR C MIL SPEC ALL MATERIAL RESPONSES OVERALL. 11 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.