The Valve,heater Control,vehicular, cataloged under National Stock Number 2540-01-166-1028, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Chrysler Realty Company Llc Dba Daimler Chrysler. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2540-01-166-1028 |
| Primary Part Number | 3489847 |
| Item Name | Valve,heater Control,vehicular |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Chrysler Realty Company Llc Dba Daimler Chrysler |
| Status | ACTIVE |
| General Characteristics Item Description | STRAIGHT TROUGH BODY; 2 PORTS; CABLE OPERATED; U/W 1/2 IN. HOSE BY 5/8 IN. HOSE IN |
| 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 |
NSN 2540-01-166-1028 is a Valve,heater Control,vehicular, manufactured by Chrysler Realty Company Llc Dba Daimler Chrysler, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-166-1028 has 2 manufacturer part numbers on file: 3489847 (Chrysler Realty Company Llc Dba Daimler Chrysler), H 422 (Stant Mfg Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-479-0683. Verify interchangeability with system specifications before substitution.
Key specifications for 3489847: General Characteristics Item Description: STRAIGHT TROUGH BODY; 2 PORTS; CABLE OPERATED; U/W 1/2 IN. HOSE BY 5/8 IN. HOSE IN; End Item Identification: 2310-00-579-9078. 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.