The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-578-0163, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-578-0163 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Width Across Flats | 0.630 INCHES NOMINAL IN |
| Sealing Method | COMPRESSION |
| Thread Series | UNF |
| Opening Inside Diameter | 0.422 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Base Thread Location | INTERNAL |
| Thread Length | 0.161 INCHES NOMINAL IN |
| Style Designator | CLOSED END |
| Base Height | 0.186 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | RUBBER SILICONE BODY |
| 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 |
|---|---|
| B7441736P2 | 5/9 Secondary reference General Electric Co Distribution Equipment North Hollywood Plant |
| N1080 | 5/2 Secondary reference U.S. Government activity |
| M1080736P2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-578-0163 is a Boot,dust and Moisture Seal, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-578-0163: Overall Height: 1.746 INCHES NOMINAL IN; Width Across Flats: 0.630 INCHES NOMINAL IN; Sealing Method: COMPRESSION; Thread Series: UNF. 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.