The Heating-Ventilation-and Air Cond, cataloged under National Stock Number 2540-01-657-1442, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Itw Gse Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2540-01-657-1442 |
| Primary Part Number | 29231 |
| Item Name | Heating-Ventilation-and Air Cond |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Itw Gse Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 29231 PRIMARY | Itw Gse Inc. (USA) |
| Reference | Meaning |
|---|---|
| 29231 | 3/9 Design control — primary reference Gse Holdings Inc. Dba Itw Military Gse Div Hobart Ground Systems |
NSN 2540-01-657-1442 is a Heating-Ventilation-and Air Cond, manufactured by Itw Gse Inc., classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-657-1442 has 1 manufacturer part number on file: 29231 (Itw Gse Inc.).
Key specifications for 29231: Part Name Assigned by Controlling Agency: FOLDING VISOR WELDMENT; End Item Identification: CONTROL AND POWER MODULE ASSEMBLY. 0 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.
NSN 2540-01-657-1442 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.