The Heat Exchanger,fluid to Air, cataloged under National Stock Number 1660-01-556-9073, 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 Naval Sea Systems Command. 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 | 1660-01-556-9073 |
| Primary Part Number | 7385969 |
| Item Name | Heat Exchanger,fluid to Air |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Accessory Components and Quantity | 0.750 NPTF FITTING 2; 0.125 NPTF DRAIN 2; 0.375 NPTF ZINC FITTING 2; 0.750-16UNF-2B BOLT 2; SAE O-RING 8 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7385969 PRIMARY | Naval Sea Systems Command (USA) |
NSN 1660-01-556-9073 is a Heat Exchanger,fluid to Air, manufactured by Naval Sea Systems Command, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-556-9073 has 1 manufacturer part number on file: 7385969 (Naval Sea Systems Command).
Key specifications for 7385969: Overall Length: 25.125 INCHES NOMINAL IN; Accessory Components and Quantity: 0.750 NPTF FITTING 2; 0.125 NPTF DRAIN 2; 0.375 NPTF ZINC FITTING 2; 0.750-16UNF-2B BOLT 2; SAE O-RING 8; Special Features: SHELL SIDE HAVING R1.34A REFRIGERANT WITH MASS FLOW RATE OF 175LMB/HR; TUBE SIDE HAVING FLUID OF SEA WATER, FLOW RATE OF 8-10 GPM, WITH MAXIMUM TEMPERATURE INPUT OF 95 DEGREES FARENHEIT A; Part Name Assigned by Controlling Agency: (INAVY) COOLING SYSTEM HEAT EXCHANGER. 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 1660-01-556-9073 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.