The Seal,plain Encased, cataloged under National Stock Number 5330-01-348-5781, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-348-5781 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Seal Width | 0.625 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR-OPPOSED |
| Outside Diameter | 11.258 INCHES NOMINAL IN |
| Housing Bore Diameter | 11.250 INCHES NOMINAL IN |
| Case Style | RECESSED |
| Accommodated Shaft Diameter | 5.875 INCHES NOMINAL IN |
| Surface Treatment | PLASTIC CASE |
| Material | STEEL CORROSION RESISTING CASE |
| Material | STEEL CORROSION RESISTING SPRING |
| Material | RUBBER OUTER RING |
| 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 |
|---|---|
| 6619840 | 5/9 Secondary reference Raytheon Company |
| CRWHA1 | 3/9 Design control — primary reference U.S. Government activity |
| 6619840 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
| 92536 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-348-5781 is a Seal,plain Encased, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 7310-01-600-9671. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-348-5781: Seal Width: 0.625 INCHES NOMINAL IN; Sealing Element Style: ANGULAR-OPPOSED; Outside Diameter: 11.258 INCHES NOMINAL IN; Housing Bore Diameter: 11.250 INCHES NOMINAL IN. 10 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.