The Gasket, cataloged under National Stock Number 5330-00-237-7855, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-237-7855 |
| Primary Part Number | GV39-619-6-90D |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL OVERALL |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Aperture Diameter | 0.750 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC OVERALL |
| 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 |
|---|---|
| GV39-619-6-90D PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| GV39-619-6-90 | 5/9 Secondary reference Dresser Industries Inc Petroleum Equipment Div - Wayne |
NSN 5330-00-237-7855 is a Gasket, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-237-7855 has 1 manufacturer part number on file: GV39-619-6-90D (Automatic Switch Company Dba Asco).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-251-7578. Verify interchangeability with system specifications before substitution.
Key specifications for GV39-619-6-90D: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL OVERALL; Style Designator: CIRCULAR; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION. 7 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.