The Retainer,packing, cataloged under National Stock Number 5330-00-326-7646, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-326-7646 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Outer Groove Depth | 0.110 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.517 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-225/9 T7351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SPECIAL |
| Peripheral Diameter | 0.988 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN |
| Outer Groove Width | 0.207 INCHES MINIMUM AND 0.217 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE OVERALL |
| Center Hole Diameter | 0.266 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3292101 | 3/2 Design control — primary reference U.S. Government activity |
| 3292101 | 3/9 Design control — primary reference U.S. Government activity |
| 3292048 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-326-7646 is a Retainer,packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5985-01-348-0239. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-00-326-7646: Outer Groove Depth: 0.110 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Cross-Sectional Height: 0.517 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-225/9 T7351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SPECIAL. 9 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.