The Control Assembly,vent, cataloged under National Stock Number 2540-01-359-9279, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Wescon Products Company Div Controls. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2540-01-359-9279 |
| Primary Part Number | 12-2021(LH) |
| Item Name | Control Assembly,vent |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Wescon Products Company Div Controls |
| Status | ACTIVE |
| General Characteristics Item Description | WIRE WOUND LINED CONDUIT 0.188 IN. DIA 14.000 IN. LG; INNERWIRE,TYPE 302 S.S. SPRING WIRE1.875 IN. L.,W/TRAVEL OF 1.188,W/2-3 COILS.; 0.125 IN. DIA BLACK BALL W |
| 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 |
|---|---|
| 12-2021(LH) PRIMARY | Wescon Products Company Div Controls (USA) |
| Reference | Meaning |
|---|---|
| SW25962 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 2540-01-359-9279 is a Control Assembly,vent, manufactured by Wescon Products Company Div Controls, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-359-9279 has 1 manufacturer part number on file: 12-2021(LH) (Wescon Products Company Div Controls).
Key specifications for 12-2021(LH): General Characteristics Item Description: WIRE WOUND LINED CONDUIT 0.188 IN. DIA 14.000 IN. LG; INNERWIRE,TYPE 302 S.S. SPRING WIRE1.875 IN. L.,W/TRAVEL OF 1.188,W/2-3 COILS.; 0.125 IN. DIA BLACK BALL W. 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.