The Seal,plain Encased, cataloged under National Stock Number 5330-01-425-0051, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-425-0051 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.323 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN |
| Attachment Feature Quantity | 6 |
| Seal Width | 0.086 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 2.841 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 RETAINER |
| Attachment Method | ROUND HOLE |
| 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 |
|---|---|
| 870375 | 3/2 Design control — primary reference U.S. Government activity |
| 17B6D1390-505 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5330-01-425-0051 is a Seal,plain Encased, classified under FSC 5330, Packing and Gasket Materials. Status: active.
Key specifications for 5330-01-425-0051: Attachment Hole Diameter: 0.323 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Attachment Feature Quantity: 6; Seal Width: 0.086 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT. 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.