The Plug,vent, cataloged under National Stock Number 5340-01-640-8284, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Webb Research Corp.. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-640-8284 |
| Primary Part Number | G-269 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Webb Research Corp. |
| Status | ACTIVE |
| Outside Diameter | 0.438 INCHES NOMINAL IN |
| 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 |
|---|---|
| G-269 PRIMARY | Webb Research Corp. (USA) |
NSN 5340-01-640-8284 is a Plug,vent, manufactured by Webb Research Corp., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-640-8284 has 1 manufacturer part number on file: G-269 (Webb Research Corp.).
1 possible match (shared part number, not a government interchangeability claim): 5220-01-659-5062. Verify interchangeability with system specifications before substitution.
Key specifications for G-269: Outside Diameter: 0.438 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: VENT, PLUG 7/16; End Item Identification: AN/WSQ-40. 1 specification is 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.