The Heat Exchanger,air to Air,aircra, cataloged under National Stock Number 1660-00-084-2952, 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 Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1660-00-084-2952 |
| Primary Part Number | 0903-88 |
| Item Name | Heat Exchanger,air to Air,aircra |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters |
| Status | ACTIVE |
| 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 |
|---|---|
| 0903-88 PRIMARY | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| Reference | Meaning |
|---|---|
| 888574-801 | 7/2 Vendor item drawing reference Raytheon Company |
NSN 1660-00-084-2952 is a Heat Exchanger,air to Air,aircra, manufactured by Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-084-2952 has 1 manufacturer part number on file: 0903-88 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters).
Key specifications for 0903-88: Overall Height: 10.843 INCHES MINIMUM AND 10.875 INCHES MAXIMUM IN; Overall Width: 4.000 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN; Special Features: ALUM. ALLOY;21.688 IN. NOM O/A LG IN. 0 specifications are 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 1660-00-084-2952 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.