The Heat Exchanger,air to Air,aircra, cataloged under National Stock Number 1660-01-464-8900, 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 Honeywell International Inc. Div Aerospace - Torrance. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-464-8900 |
| Primary Part Number | 2341318-2-1 |
| Item Name | Heat Exchanger,air to Air,aircra |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| 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 |
|---|---|
| 123SCEC5172-11 | Northrop Grumman Systems Corporation (USA) |
| 2341318-2-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 2341318-1-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 123SCEC5172-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1660-01-464-8900 is a Heat Exchanger,air to Air,aircra, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-464-8900 has 2 manufacturer part numbers on file: 123SCEC5172-11 (Northrop Grumman Systems Corporation), 2341318-2-1 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 2341318-2-1: Special Features: NAVYI HEAT EXCHANGER,AIR; End Item Identification: E-2C ITEM. 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 1660-01-464-8900 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.