The Ventilator,air Circulating, cataloged under National Stock Number 2540-01-562-4591, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2540-01-562-4591 |
| Primary Part Number | 11E421235 |
| Item Name | Ventilator,air Circulating |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center |
| Status | ACTIVE |
| Accessory Components and Quantity | RIA148910 BOTTOM (1) AND RIA149449 HEATER VENT (3) |
| 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 |
|---|---|
| 11E421235 PRIMARY | Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center (USA) |
| Reference | Meaning |
|---|---|
| RIA149548 | 5/9 Secondary reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
NSN 2540-01-562-4591 is a Ventilator,air Circulating, manufactured by Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-562-4591 has 1 manufacturer part number on file: 11E421235 (Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center).
Key specifications for 11E421235: Accessory Components and Quantity: RIA148910 BOTTOM (1) AND RIA149449 HEATER VENT (3); Part Name Assigned by Controlling Agency: PLENUM BOTTOM ASSEMBLY; End Item Identification: 4940-01-463-7940 FORWARD REPAIR SYSTEM. 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.