The Plug,vent, cataloged under National Stock Number 5340-01-367-2631, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Grinnell Fire Protection. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Plug,vent |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Grinnell Fire Protection (CAGE 04826) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-367-2631 |
| Primary Part Number | 77-409 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Grinnell Fire Protection |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 77-409 PRIMARY | Grinnell Fire Protection (USA) |
NSN 5340-01-367-2631 is a Plug,vent, manufactured by Grinnell Fire Protection, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-367-2631 has 1 manufacturer part number on file: 77-409 (Grinnell Fire Protection).
1 possible match (shared part number, not a government interchangeability claim): 4010-01-479-9205. 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.