The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-754-1591, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Breeze-Eastern Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share 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 | 5340-00-754-1591 |
| Primary Part Number | 1013-38 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL IN |
| Design Type | THREADED |
| Surface Treatment | PASSIVATE |
| Thread Class | 3B |
| Material | STEEL CORROSION RESISTING |
| Thread Size and Series/type Designator | 3/4-20 UNEF |
| Inside Diameter Length | 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| 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 |
NSN 5340-00-754-1591 is a Cap,protective,dust and Moisture, manufactured by Breeze-Eastern Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-754-1591 has 2 manufacturer part numbers on file: 1013-38 (Breeze-Eastern Llc), 1013-38 (Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6625-01-127-6462, 5355-01-193-1249. Verify interchangeability with system specifications before substitution.
Key specifications for 1013-38: Width Across Flats: 1.000 INCHES NOMINAL IN; Design Type: THREADED; Surface Treatment: PASSIVATE; Thread Class: 3B. 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.