The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-2803, 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 8 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. 4 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 | 5330-00-291-2803 |
| Primary Part Number | 500087 |
| 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 | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 2.499 INCHES MINIMUM AND 2.501 INCHES MAXIMUM IN |
| Accommodated Shaft Maximum Rated Speed | 1600 FEET PER MINUTE FT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 1.750 INCHES NOMINAL IN |
| Material | LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT |
| Material | STEEL CASE |
| 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 |
|---|---|
| 500087 | Army Weapons Command Attn Amswe-Ree-S (USA) |
NSN 5330-00-291-2803 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 5330-00-291-2803 has 1 manufacturer part number on file: 500087 (Army Weapons Command Attn Amswe-Ree-S).
4 possible matches (shared part number, not a government interchangeability claim): 2920-00-770-3985, 6930-00-926-9663, 5340-01-326-4870. Verify interchangeability with system specifications before substitution.
Key specifications for 500087: Seal Width: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN; Sealing Element Style: ANGULAR; Housing Bore Diameter: 2.499 INCHES MINIMUM AND 2.501 INCHES MAXIMUM IN; Accommodated Shaft Maximum Rated Speed: 1600 FEET PER MINUTE FT. 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.