The Seal,plain, cataloged under National Stock Number 5330-01-504-0771, 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 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-504-0771 |
| Primary Part Number | 563-7286781-50 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Seal Width | 0.860 INCHES NOMINAL IN |
| Housing Bore Diameter | 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN |
| Accommodated Shaft Diameter | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Material | PLASTIC POLYURETHANE OVERALL |
| Construction | ONE-PIECE |
| 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 |
|---|---|
| 563-7286781-50 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H684-1505-50 | 5/9 Secondary reference U.S. Government activity |
| H6841505A-50 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-504-0771 is a Seal,plain, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-504-0771 has 1 manufacturer part number on file: 563-7286781-50 (Naval Sea Systems Command).
Key specifications for 563-7286781-50: Seal Width: 0.860 INCHES NOMINAL IN; Housing Bore Diameter: 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN; Accommodated Shaft Diameter: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: SEAL DYNAMIC. 5 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.