The Seal,plain Encased, cataloged under National Stock Number 5330-01-437-9507, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-01-437-9507 |
| Primary Part Number | A-A-52524/1-157-2 |
| 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 | 0.625 INCHES NOMINAL IN |
| Sealing Element Style | VERTICAL |
| Housing Bore Diameter | 4.756 INCHES NOMINAL IN |
| Case Style | FLANGED |
| Accommodated Shaft Diameter | 4.751 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC OVERALL |
| 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-52524/1-157-2 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| MS51000-157-2 | 5/9 Secondary reference U.S. Government activity |
| A-A-52524/1 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 5330-01-437-9507 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 5330-01-437-9507 has 1 manufacturer part number on file: A-A-52524/1-157-2 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for A-A-52524/1-157-2: Seal Width: 0.625 INCHES NOMINAL IN; Sealing Element Style: VERTICAL; Housing Bore Diameter: 4.756 INCHES NOMINAL IN; Case Style: FLANGED. 6 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.