The Plug,vent, cataloged under National Stock Number 5340-01-643-8203, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Brennan Industries, Inc.. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Plug,vent |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Lake Shore Systems, Inc. (CAGE 34712); Brennan Industries, Inc. (CAGE 6KBN0) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-643-8203 |
| Primary Part Number | 6408-H-06-O-53 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Brennan Industries, Inc. |
| 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 |
|---|---|
| F163618 REV | Lake Shore Systems, Inc. (USA) |
| 6408-H-06-O-53 PRIMARY | Brennan Industries, Inc. (USA) |
| 162233 REV ITEM NO. 15 | Lake Shore Systems, Inc. (USA) |
NSN 5340-01-643-8203 is a Plug,vent, manufactured by Brennan Industries, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-643-8203 has 3 manufacturer part numbers on file: F163618 REV (Lake Shore Systems, Inc.), 6408-H-06-O-53 (Brennan Industries, Inc.), 162233 REV ITEM NO. 15 (Lake Shore Systems, Inc.).
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.