The Seal,plain, cataloged under National Stock Number 5330-01-012-2640, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-012-2640 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Seal Width | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Housing Bore Diameter | 1.573 INCHES MINIMUM AND 1.579 INCHES MAXIMUM IN |
| Material Document and Classification | BG720B14,FSCM 81306 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Accommodated Shaft Diameter | 1.184 INCHES MINIMUM AND 1.186 INCHES MAXIMUM IN |
| Material | RUBBER SEALING ELEMENT |
| Construction | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 91938 | 3/2 Design control — primary reference U.S. Government activity |
| 91938 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-012-2640 is a Seal,plain, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3120-01-282-3292. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-012-2640: Seal Width: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN; Housing Bore Diameter: 1.573 INCHES MINIMUM AND 1.579 INCHES MAXIMUM IN; Material Document and Classification: BG720B14,FSCM 81306 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT; Accommodated Shaft Diameter: 1.184 INCHES MINIMUM AND 1.186 INCHES MAXIMUM IN. 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.