The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-236-4687, 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 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-236-4687 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Supplementary Features | FUNCTIONAL DESCRIPTION:USED ON WING/BODY INTERFACE STRAKELET RAM AIR DUCT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 361-70107-504 | 3/2 Design control — primary reference U.S. Government activity |
| 361-70107-502 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-236-4687 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-236-4687: Supplementary Features: FUNCTIONAL DESCRIPTION:USED ON WING/BODY INTERFACE STRAKELET RAM AIR DUCT; Special Features: CONSIST OF 4 DUCT HALF; SAME AS -502; NHA 361-70105; End Item Identification: ACFT MODEL B-52. 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.