The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-2858, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-291-2858 |
| Primary Part Number | A-A-52524/11-36-1 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Seal Width | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Sealing Element Style | VERTICAL-ANGULAR |
| Housing Bore Diameter | 4.2505 INCHES MINIMUM AND 4.2535 INCHES MAXIMUM IN |
| Accommodated Shaft Maximum Rated Speed | 1600 FEET PER MINUTE FT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 3.250 INCHES NOMINAL IN |
| Material | LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT B |
| Material | WOOL SEALING ELEMENT A |
| 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 |
|---|---|
| A-A-52524/11-36-1 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| MS51915-36-1 | 5/9 Secondary reference U.S. Government activity |
| 585890 | 5/1 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 5330002912858 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 5330002912858 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 15677L60 | 5/1 Secondary reference Federal-Mogul Corp Government Sales Dept |
NSN 5330-00-291-2858 is a Seal,plain Encased, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-291-2858 has 1 manufacturer part number on file: A-A-52524/11-36-1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
2 possible matches (shared part number, not a government interchangeability claim): 5950-00-645-4528, 2510-01-540-3097. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-52524/11-36-1: Seal Width: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Sealing Element Style: VERTICAL-ANGULAR; Housing Bore Diameter: 4.2505 INCHES MINIMUM AND 4.2535 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.