The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-449-2104, 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 Eaton Corporation Div Fed. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-449-2104 |
| Primary Part Number | KC01710-001 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Eaton Corporation Div Fed |
| Status | ACTIVE |
| Aircraft Station Number | FS263 TO FS279 |
| Height | 5.050 INCHES NOMINAL IN |
| Aircraft Location | APU BAY |
| Material | RUBBER SYNTHETIC AND GLASS FIBER |
| Hole Quantity | 20 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| KC01710-001 PRIMARY | Eaton Corporation Div Fed (USA) |
| Reference | Meaning |
|---|---|
| KC49380-1 | 5/9 Secondary reference Tolo Incorporated Dba Bfgoodrich Aerospace, Tolo Division |
| KC48380-1 | 5/9 Secondary reference Kirkhill, Inc. Dba Kirkhill Inc |
NSN 1660-01-449-2104 is a Duct Assembly,air Conditioning-H, manufactured by Eaton Corporation Div Fed, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-449-2104 has 1 manufacturer part number on file: KC01710-001 (Eaton Corporation Div Fed).
Key specifications for KC01710-001: Aircraft Station Number: FS263 TO FS279; Overall Length: 21.125 INCHES NOMINAL IN; Overall Width: 12.040 INCHES NOMINAL IN; Height: 5.050 INCHES NOMINAL IN. 5 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 1660-01-449-2104 has DEMIL Code Q. 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.