The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-779-5477, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-779-5477 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Width Across Flats | 0.174 INCHES NOMINAL IN |
| Design Type | FRICTION |
| Tube Outside Diameter for Which Designed | 0.620 INCHES NOMINAL IN |
| Material | PLASTIC, POLYETHYLENE (PP) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| WW1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-779-5477 is a Cap,protective,dust and Moisture, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5315-01-074-4959. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-00-779-5477: Width Across Flats: 0.174 INCHES NOMINAL IN; Design Type: FRICTION; Tube Outside Diameter for Which Designed: 0.620 INCHES NOMINAL IN; Special Features: COLOR YELLOW. 4 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.