The Packing,preformed, cataloged under National Stock Number 5330-00-763-9031, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Williams International Co., L.l.c.. Government technical data includes 8 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. 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 | 5330-00-763-9031 |
| Primary Part Number | 20041-8 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Williams International Co., L.l.c. |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL OVERALL |
| Material Document and Classification | 19357 FSCM 86579 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | O-RING |
| Color | BLACK |
| Center Hole Diameter | 2.974 INCHES MINIMUM AND 3.004 INCHES MAXIMUM 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 |
|---|---|
| 20041-8 PRIMARY | Williams International Co., L.l.c. (USA) |
NSN 5330-00-763-9031 is a Packing,preformed, manufactured by Williams International Co., L.l.c., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-763-9031 has 1 manufacturer part number on file: 20041-8 (Williams International Co., L.l.c.).
2 possible matches (shared part number, not a government interchangeability claim): 5975-01-099-0596, 5340-01-376-0670. Verify interchangeability with system specifications before substitution.
Key specifications for 20041-8: Temp Rating: -65.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL OVERALL; Material Document and Classification: 19357 FSCM 86579 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 8 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.