The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-109-0083, 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9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-109-0083 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN |
| Tube Outside Diameter for Which Designed | 0.469 INCHES NOMINAL IN |
| Connector Nominal Thread Size for Which Designed | 0.437 INCHES IN |
| Thread Class | 3A A |
| Material | ALUMINUM ALLOY |
| Thread Size and Series/type Designator | 0.437-20 UNF |
| Inside Diameter Length | 0.340 INCHES NOMINAL IN |
| Round Cap Outside Surface Condition | KNURLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| C4WITHBUNANHIGHNITRILEDISC | 5/9 Secondary reference U.S. Government activity |
| 2483832-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-109-0083 is a Cap,protective,dust and Moisture, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-109-0083: Design Type: THREADED; Overall Diameter: 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN; Tube Outside Diameter for Which Designed: 0.469 INCHES NOMINAL IN; Connector Nominal Thread Size for Which Designed: 0.437 INCHES IN. 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.