The Adapter,air Inlet,heat Exchanger, cataloged under National Stock Number 1660-01-357-1176, 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 Boyd Corporation (woburn) Inc. 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 | 1660-01-357-1176 |
| Primary Part Number | 504109 |
| Item Name | Adapter,air Inlet,heat Exchanger |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Boyd Corporation (woburn) Inc |
| Status | ACTIVE |
| General Characteristics Item Description | METAL; 24.750 IN. NOMINAL OVERALL LENGTH; 23.880 IN. NOMINAL OVERALL WIDTH; 6.620 IN. NOMINAL OVERALL HEIGHT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 504109 PRIMARY | Boyd Corporation (woburn) Inc (USA) |
NSN 1660-01-357-1176 is a Adapter,air Inlet,heat Exchanger, manufactured by Boyd Corporation (woburn) Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-357-1176 has 1 manufacturer part number on file: 504109 (Boyd Corporation (woburn) Inc).
Key specifications for 504109: General Characteristics Item Description: METAL; 24.750 IN. NOMINAL OVERALL LENGTH; 23.880 IN. NOMINAL OVERALL WIDTH; 6.620 IN. NOMINAL OVERALL HEIGHT IN. 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.
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.