The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-357-6550, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-357-6550 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| Aircraft Location | CENTER FUSELAGE |
| Material | TITANIUM |
| Side for Which Designed | LEFT SIDE |
| Aircraft Mission Design Series | C-17 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 17P2N1052-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-357-6550 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-357-6550: Overall Length: 50.690 INCHES NOMINAL IN; Material Thickness: 0.032 INCHES NOMINAL IN; Special Features: INCLUDES FIBERGLASS INSULATION AND COVER; Aircraft Location: CENTER FUSELAGE. 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.
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.