The Seal,plain Encased, cataloged under National Stock Number 5330-00-171-8950, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Army Weapons Command Attn Amswe-Ree-S. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-171-8950 |
| Primary Part Number | 500777 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Army Weapons Command Attn Amswe-Ree-S |
| Status | ACTIVE |
| Seal Width | 0.453 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 4.9975 INCHES MINIMUM AND 5.0005 INCHES MAXIMUM IN |
| Accommodated Shaft Maximum Rated Speed | 2000 FEET PER MINUTE FT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 3.000 INCHES NOMINAL IN |
| Material | LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT |
| 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 |
|---|---|
| 500777 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| Reference | Meaning |
|---|---|
| 00044 | 5/1 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
NSN 5330-00-171-8950 is a Seal,plain Encased, manufactured by Army Weapons Command Attn Amswe-Ree-S, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-171-8950 has 1 manufacturer part number on file: 500777 (Army Weapons Command Attn Amswe-Ree-S).
3 possible matches (shared part number, not a government interchangeability claim): 5331-01-127-0412, 5905-01-169-2631, 5905-01-190-8430. Verify interchangeability with system specifications before substitution.
Key specifications for 500777: Seal Width: 0.453 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN; Sealing Element Style: ANGULAR; Housing Bore Diameter: 4.9975 INCHES MINIMUM AND 5.0005 INCHES MAXIMUM IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT. 7 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.