The Heat Exchanger,air to Water,airc, cataloged under National Stock Number 1660-01-341-0702, 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 Young Touchstone Company Div Young Touchstone. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Heat Exchanger,air to Water,airc |
| FSC / FSG | 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16) |
| Manufacturers | Young Touchstone Company Div Young Touchstone (CAGE 67049) |
| Parameter | Value |
|---|---|
| NSN | 1660-01-341-0702 |
| Primary Part Number | F502-EY-2P-CNTB |
| Item Name | Heat Exchanger,air to Water,airc |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Young Touchstone Company Div Young Touchstone |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| F502-EY-2P-CNTB PRIMARY | Young Touchstone Company Div Young Touchstone (USA) |
| 279580 | Young Touchstone Company Div Young Touchstone (USA) |
NSN 1660-01-341-0702 is a Heat Exchanger,air to Water,airc, manufactured by Young Touchstone Company Div Young Touchstone, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-341-0702 has 2 manufacturer part numbers on file: F502-EY-2P-CNTB (Young Touchstone Company Div Young Touchstone), 279580 (Young Touchstone Company Div Young Touchstone).
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 1660-01-341-0702 has DEMIL Code B. 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.