The Retainer,packing, cataloged under National Stock Number 5330-01-641-8981, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-641-8981 |
| Primary Part Number | 803-7526222-16-OB-4-S-C-010 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Lip Inside Diameter | 1.500 INCHES MINIMUM AND 1.504 INCHES MAXIMUM IN |
| Cross-Sectional Height | 1.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281, CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | FLANGE |
| Flanged Body Outside Diameter | 2.340 INCHES MINIMUM AND 2.345 INCHES MAXIMUM IN |
| Peripheral Diameter | 3.312 INCHES NOMINAL IN |
| Center Hole Diameter | 1.500 INCHES MINIMUM AND 1.504 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 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 |
|---|---|
| 803-7526222-16-OB-4-S-C-010 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-7526222 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5330-01-641-8981 is a Retainer,packing, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-641-8981 has 1 manufacturer part number on file: 803-7526222-16-OB-4-S-C-010 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-642-0318, 5305-01-642-1933. Verify interchangeability with system specifications before substitution.
Key specifications for 803-7526222-16-OB-4-S-C-010: Lip Inside Diameter: 1.500 INCHES MINIMUM AND 1.504 INCHES MAXIMUM IN; Cross-Sectional Height: 1.250 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281, CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: FLANGE. 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.