The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-223-2289, 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5 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-223-2289 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Aircraft Station Number | FS1053.500 |
| Material Document and Classification | QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Aircraft Location | DUCT ASSEMBLY-COOLING AIR,AIR COND |
| Material | ALUMINUM ALLOY 5052 |
| Aircraft Mission Design Series | C-5 |
| 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 |
| Reference | Meaning |
|---|---|
| 4A10099-105A | 5/9 Secondary reference Aero Components, Llc |
| 4A10099-105A | 5/9 Secondary reference Cpi Aerostructures Inc |
| 4A10099-105A | 5/9 Secondary reference Winding Specialists Co., Inc |
| 4A10099-105A | 3/2 Design control — primary reference U.S. Government activity |
| 4A10099-105A | 5/9 Secondary reference Mra Systems, Llc |
| 4A10099-105A | 5/9 Secondary reference Aerometals, Inc. |
| 4A10099-105A | 5/9 Secondary reference Arrowhead Products Corp |
| 4A10099-105A | 5/9 Secondary reference Eaton Corporation Div Fed |
| 4A10099-105A | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-223-2289 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-223-2289: Aircraft Station Number: FS1053.500; Material Document and Classification: QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE; Special Features: SIZE .040X19.0X19.0; PART OF -101A DUCT ASSEMBLY A; Aircraft Location: DUCT ASSEMBLY-COOLING AIR,AIR COND. 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 1660-01-223-2289 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.