The Adapter,air Inlet,heat Exchanger, cataloged under National Stock Number 1660-01-381-8497, 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 Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 3 specifications, 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 | 1660-01-381-8497 |
| Primary Part Number | DAA3287A544-021 |
| Item Name | Adapter,air Inlet,heat Exchanger |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| FSC Application Data | ACFT HEATING/AIR CONDITIONING SYSTEM |
| General Characteristics Item Description | AFT RACK; ADAPTER C/O: SEAL -023; MANIFOLD ASSY -019; FRAME DAA3287D194-005; BOSS DAA3287D902-001; 36 RIVET 03A081C4-5; 36 WASHER 03A118-4 |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | H |
| Part Number | Manufacturer |
|---|---|
| DAA3287A544-021 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
NSN 1660-01-381-8497 is a Adapter,air Inlet,heat Exchanger, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-381-8497 has 1 manufacturer part number on file: DAA3287A544-021 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for DAA3287A544-021: FSC Application Data: ACFT HEATING/AIR CONDITIONING SYSTEM; General Characteristics Item Description: AFT RACK; ADAPTER C/O: SEAL -023; MANIFOLD ASSY -019; FRAME DAA3287D194-005; BOSS DAA3287D902-001; 36 RIVET 03A081C4-5; 36 WASHER 03A118-4; End Item Identification: PACER SPECIAL; Nuclear Hardness Critical Feature: HARDENED. 3 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 1660-01-381-8497 has DEMIL Code D. 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.