The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-540-7587, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Brownell Ltd. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (CAGE 26916); Brownell Ltd (CAGE K3649) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-540-7587 |
| Primary Part Number | BL/D9401 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Brownell Ltd |
| Status | ACTIVE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 029-002089-0001 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| BL/D9401 PRIMARY | Brownell Ltd (GBR) |
| Reference | Meaning |
|---|---|
| BL/D9409 | 5/9 Secondary reference Brownell Ltd |
NSN 5340-01-540-7587 is a Plug,protective,dust and Moistur, manufactured by Brownell Ltd, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-540-7587 has 2 manufacturer part numbers on file: 029-002089-0001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), BL/D9401 (Brownell Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-669-4833. Verify interchangeability with system specifications before substitution.
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.