The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-434-2378, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-434-2378 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Opening Inside Diameter for Which Designed | 1.2210 INCHES MINIMUM AND 1.2410 INCHES MAXIMUM IN |
| 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 |
|---|---|
| NASM5501/31 | 3/1 Design control — primary reference U.S. Government activity |
| M5501/31-1231 | 3/2 Design control — primary reference U.S. Government activity |
| M5501/31A-1231 | 5/9 Secondary reference U.S. Government activity |
| MIL-C-5501/31 | 5/9 Secondary reference U.S. Government activity |
| M5501/31-1231 | 5/9 Secondary reference U.S. Government activity |
| 4270 M5501/31A-1231 | 5/9 Secondary reference 3m Company Dba 3m |
| 4270 M5501/31A-1231 | C/1 Advisory reference — outside the item-of-supply concept 3m Company |
NSN 5340-01-434-2378 is a Cap,protective,dust and Moisture, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-434-2378: Opening Inside Diameter for Which Designed: 1.2210 INCHES MINIMUM AND 1.2410 INCHES MAXIMUM IN. 1 specification is 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.