The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-399-0179, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-399-0179 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 1.2190 INCHES MINIMUM AND 1.2810 INCHES MAXIMUM IN |
| Opening Inside Diameter for Which Designed | 1.0180 INCHES MINIMUM AND 1.0380 INCHES MAXIMUM IN |
| Material | PLASTIC |
| 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 |
|---|---|
| MIL-C-5501 | 4/1 Identification reference U.S. Government activity |
| MS90376-18YB | 2/2 Government specification standardization U.S. Government activity |
NSN 5340-01-399-0179 is a Cap,protective,dust and Moisture, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-399-0179: Design Type: FRICTION; Overall Diameter: 1.2190 INCHES MINIMUM AND 1.2810 INCHES MAXIMUM IN; Opening Inside Diameter for Which Designed: 1.0180 INCHES MINIMUM AND 1.0380 INCHES MAXIMUM IN; Special Features: THE ITEM IS MADE FROM MIL-B-81705, TYPE 1. THE ITEM IS CONDUCTIVE AND BLACK IN COLOR. 5 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.