The Plug,vent, cataloged under National Stock Number 5340-01-450-0880, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Buyers Products Company. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-450-0880 |
| Primary Part Number | HBF12 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Buyers Products Company |
| Status | ACTIVE |
| Length | 2.750 INCHES NOMINAL IN |
| End Connection Type | THREADED |
| Thread Size and Series/type Designator | 3/4 NPT |
| 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 |
|---|---|
| HBF12 PRIMARY | Buyers Products Company (USA) |
| Reference | Meaning |
|---|---|
| 9314C02-2994 | 7/2 Vendor item drawing reference The Entwistle Company Llc |
NSN 5340-01-450-0880 is a Plug,vent, manufactured by Buyers Products Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-450-0880 has 1 manufacturer part number on file: HBF12 (Buyers Products Company).
Key specifications for HBF12: Length: 2.750 INCHES NOMINAL IN; End Connection Type: THREADED; Thread Size and Series/type Designator: 3/4 NPT. 3 specifications are 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.