The Retainer,seal, cataloged under National Stock Number 5330-00-451-0311, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-451-0311 |
| Item Name | Retainer,seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Flange Thickness | 0.188 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-268,TY 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Seal Seat Diameter | 1.812 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 2.750 INCHES NOMINAL IN |
| Mounting Flange Diameter | 3.250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Seal Seat Depth | 0.344 INCHES NOMINAL IN |
| 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 |
|---|---|
| 702182 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-451-0311 is a Retainer,seal, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6210-01-157-4817. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-00-451-0311: Overall Height: 1.011 INCHES NOMINAL IN; Flange Thickness: 0.188 INCHES NOMINAL IN; Material Document and Classification: QQ-A-268,TY 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Seal Seat Diameter: 1.812 INCHES NOMINAL IN. 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.