The Retainer,seal, cataloged under National Stock Number 5330-01-053-9448, 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 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-053-9448 |
| Primary Part Number | 2523851 |
| Item Name | Retainer,seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Thickness | 0.562 INCHES NOMINAL IN |
| Body Outside Diameter | 3.125 INCHES NOMINAL IN |
| Style Designator | FLANGED |
| Bolt Hole Diameter | 0.219 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/6,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Seal Seat Diameter | 2.504 INCHES NOMINAL IN |
| Aperture Diameter | 2.375 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.562 INCHES NOMINAL IN |
| Shortest Distance Between Body End and Mounting Flange | 0.125 INCHES NOMINAL IN |
| Mounting Flange Diameter | 4.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Seal Seat Depth | 0.437 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 |
| Part Number | Manufacturer |
|---|---|
| 2523851 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5330-01-053-9448 is a Retainer,seal, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-053-9448 has 1 manufacturer part number on file: 2523851 (Naval Sea Systems Command).
Key specifications for 2523851: Overall Height: 0.750 INCHES NOMINAL IN; Flange Thickness: 0.562 INCHES NOMINAL IN; Body Outside Diameter: 3.125 INCHES NOMINAL IN; Style Designator: FLANGED. 13 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.