The Seal,plain Encased, cataloged under National Stock Number 5330-01-399-7053, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-399-7053 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.062 INCHES NOMINAL IN |
| Attachment Feature Quantity | 4 |
| Seal Width | 0.265 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN |
| Sealing Element Style | VERTICAL-ANGULAR |
| Housing Bore Diameter | 1.623 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE SPRING |
| Case Style | DISHED |
| Accommodated Shaft Diameter | 1.122 INCHES MINIMUM AND 1.128 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT |
| Material | STEEL COMP 631 SPRING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE INSERT |
| Material | STEEL COMP 302 OR STEEL COMP 304 CASE |
| 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 |
|---|---|
| 29940-2099 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 29940-2099 | 5/9 Secondary reference U.S. Government activity |
| 535099 | 3/2 Design control — primary reference U.S. Government activity |
| 296-2580-00-0 | 7/2 Vendor item drawing reference Hale Products, Inc. |
| 535099-61 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-399-7053 is a Seal,plain Encased, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2910-01-663-0921. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-399-7053: Attachment Hole Diameter: 0.062 INCHES NOMINAL IN; Attachment Feature Quantity: 4; Seal Width: 0.265 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN; Sealing Element Style: VERTICAL-ANGULAR. 13 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.