The Adapter,air Inlet,heat Exchanger, cataloged under National Stock Number 1660-00-014-6293, 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 Grimes Aerospace Company. 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 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 | 1660-00-014-6293 |
| Primary Part Number | 20D12 |
| Item Name | Adapter,air Inlet,heat Exchanger |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| General Characteristics Item Description | METAL; USED ON P/N 15D91 HEATER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 1660-00-014-6293 is a Adapter,air Inlet,heat Exchanger, manufactured by Grimes Aerospace Company, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-014-6293 has 2 manufacturer part numbers on file: 20D12 (Grimes Aerospace Company), 20D12 (Hartzell Engine Technologies Llc).
1 possible match (shared part number, not a government interchangeability claim): 5315-00-241-2920. Verify interchangeability with system specifications before substitution.
Key specifications for 20D12: General Characteristics Item Description: METAL; USED ON P/N 15D91 HEATER. 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.
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.