The Heater,vehicular,compartment, cataloged under National Stock Number 2540-01-190-8484, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2540-01-190-8484 |
| Primary Part Number | 12255989-1 |
| Item Name | Heater,vehicular,compartment |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Heat Medium Type | AIR |
| Heat Outlet Quantity | 1 |
| Heating Element Type | HOT WATER COIL |
| Operating Control Type | THERMOSTATIC |
| 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 |
|---|---|
| 12255989-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12255989-1 | Windward Enterprises, Llc (USA) |
| 12255989-1 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 12255989-1 | 5/9 Secondary reference L and S Industries Inc |
NSN 2540-01-190-8484 is a Heater,vehicular,compartment, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-190-8484 has 3 manufacturer part numbers on file: 12255989-1 (U S Army Tank Automotive Command Amsta-Im-Mm), 12255989-1 (Windward Enterprises, Llc), 12255989-1 (Lockheed Martin Corporation Div Rms).
Key specifications for 12255989-1: Heat Medium Type: AIR; Heat Outlet Quantity: 1; Heating Element Type: HOT WATER COIL; Operating Control Type: THERMOSTATIC. 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.