The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-277-9341, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-277-9341 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 0.850 INCHES NOMINAL IN |
| Opening Inside Diameter for Which Designed | 0.448 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| Z-545-4 | 3/9 Design control — primary reference New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc |
NSN 5340-01-277-9341 is a Plug,protective,dust and Moistur, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5950-01-556-7989. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-277-9341: Design Type: FRICTION; Overall Diameter: 0.850 INCHES NOMINAL IN; Opening Inside Diameter for Which Designed: 0.448 INCHES NOMINAL IN; Special Features: 7.000 IN. LANYARD IS ATTACHED IN. 4 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.