The Diffuser,air,aircraft Heating an, cataloged under National Stock Number 1660-01-434-2397, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Technical Heaters, Inc. Dba Technical Heaters Inc. 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-434-2397 |
| Primary Part Number | 70238 |
| Item Name | Diffuser,air,aircraft Heating an |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Technical Heaters, Inc. Dba Technical Heaters Inc |
| Status | ACTIVE |
| General Characteristics Item Description | WINDSHIELD HEATER FOR AIRCRAFT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 70238 PRIMARY | Technical Heaters, Inc. Dba Technical Heaters Inc (USA) |
NSN 1660-01-434-2397 is a Diffuser,air,aircraft Heating an, manufactured by Technical Heaters, Inc. Dba Technical Heaters Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-434-2397 has 1 manufacturer part number on file: 70238 (Technical Heaters, Inc. Dba Technical Heaters Inc).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-532-1024. Verify interchangeability with system specifications before substitution.
Key specifications for 70238: General Characteristics Item Description: WINDSHIELD HEATER FOR AIRCRAFT; End Item Identification: 1660-00-325-2746. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1660-01-434-2397 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.