The Core Assembly,heat Exchanger,air, cataloged under National Stock Number 1660-01-437-6932, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-437-6932 |
| Primary Part Number | 185A503-1 |
| Item Name | Core Assembly,heat Exchanger,air |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL P — Demil Prior To Sale/Transfer |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 185A503-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 1660-01-437-6932 is a Core Assembly,heat Exchanger,air, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-437-6932 has 1 manufacturer part number on file: 185A503-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 185A503-1: Overall Length: 17.710 INCHES NOMINAL IN; Overall Width: 17.630 INCHES NOMINAL IN; Special Features: FINISH: QQ-A-250/11 OR QQ-A-225/8; TREATMENT: CHEM FILM IAW MIL-C-5541 CL 3; 12 FINS PER INCH, 0.008 IN. THICK IN; Part Name Assigned by Controlling Agency: HEAT EXCHANGER,BOTTOM. 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 1660-01-437-6932 has DEMIL Code P. 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.