The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-571-9624, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-571-9624 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Width Across Flats | 0.344 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-G-45204, TYPE 1, GRADE C MIL SPEC SINGLE TREATMENT RESPONSE |
| Design Type | THREADED |
| Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | GOLD |
| Thread Class | 2B |
| Material | COPPER ALLOY AND RUBBER SYNTHETIC |
| Thread Size and Series/type Designator | 5/16-32 UNEF |
| Round Cap Outside Surface Condition | SMOOTH |
| 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 |
|---|---|
| 901341-1 | 5/9 Secondary reference Raytheon Company Div Corp |
| L5684-000-021 | 3/2 Design control — primary reference U.S. Government activity |
| 901341-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
NSN 5340-00-571-9624 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): 1680-01-543-0074. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-00-571-9624: Width Across Flats: 0.344 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-G-45204, TYPE 1, GRADE C MIL SPEC SINGLE TREATMENT RESPONSE; Design Type: THREADED; Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE. 9 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.