The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-588-5449, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-588-5449 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 4.275 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Class | 2A A |
| Material | ALUMINUM |
| Thread Size and Series/type Designator | 4.-12 UN |
| 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 |
|---|---|
| 5613012 PART NO. 20 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 5613029 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 5340-01-588-5449 is a Cap,protective,dust and Moisture, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-588-5449: Design Type: THREADED; Overall Diameter: 4.275 INCHES NOMINAL IN; Material Document and Classification: ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE; Thread Class: 2A A. 6 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.