The Plug,vent, cataloged under National Stock Number 5340-01-179-9971, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Plug,vent |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Cosmodyne, Llc Dba Cosmodyne Llc (CAGE 11243) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-179-9971 |
| Primary Part Number | 2602478-1 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| 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 |
|---|---|
| 2602478-1 PRIMARY | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| Reference | Meaning |
|---|---|
| M429 | 5/2 Secondary reference U.S. Government activity |
| 2602478 | 7/1 Vendor item drawing reference Cosmodyne, Llc Dba Cosmodyne Llc |
NSN 5340-01-179-9971 is a Plug,vent, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-179-9971 has 1 manufacturer part number on file: 2602478-1 (Cosmodyne, Llc Dba Cosmodyne Llc).
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.