The Plug,vent, cataloged under National Stock Number 5340-01-271-5023, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 4 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 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 | 5340-01-271-5023 |
| Primary Part Number | 451/064.0/0000 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| FSC Application Data | GEARBOX ASSY |
| Vent Hole Shape | ROUND |
| End Connection Type | THREADED |
| Vent Hole Quantity | 1 |
| 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 |
|---|---|
| 451/064.0/0000 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
NSN 5340-01-271-5023 is a Plug,vent, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-271-5023 has 1 manufacturer part number on file: 451/064.0/0000 (Hydraulics International, Inc. Dba Hydraulics International Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-389-1237. Verify interchangeability with system specifications before substitution.
Key specifications for 451/064.0/0000: FSC Application Data: GEARBOX ASSY; Vent Hole Shape: ROUND; End Connection Type: THREADED; End Item Identification: P/N 83001-100. 4 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.