The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-049-6009, 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 Aerometals, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-049-6009 |
| Primary Part Number | 16Y256-1 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Aerometals, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 16Y256-1 | Aerometals, Inc. (USA) |
| 16Y256-1 | Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc (USA) |
| Reference | Meaning |
|---|---|
| 16Y256-21 | 5/9 Secondary reference U.S. Government activity |
| 16Y256-17 | 5/9 Secondary reference U.S. Government activity |
| 16Y239-7 | 5/9 Secondary reference U.S. Government activity |
| 16Y256-1 | 3/2 Design control — primary reference U.S. Government activity |
| 1660PL1540315 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 1660-01-049-6009 is a Duct Assembly,air Conditioning-H, manufactured by Aerometals, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-049-6009 has 2 manufacturer part numbers on file: 16Y256-1 (Aerometals, Inc.), 16Y256-1 (Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc).
Key specifications for 16Y256-1: Special Features: DUCT,BLEED AIR,WARM AIR MIXING;C/O--23 WELD ASSY,-7 DUCT 1-1/2 OD X .028 X 14 PER MIL-T-8808 TYPE 2 FINISH S104,-9 ELBOW 1-1/2 OD X .028 X 3 PER MIL-T-8808 TYPE 2 FIN S104,-11 DUCT 1-1/4 OD X .028 X 2 PER MIL-T-8808 TYPE 2 FIN S104,-15 -17 -19 -21 SHELLS PER FMS-1024 STYLE 181 FIN E100,-25 ADAPTER C7886-2,COUPLINGS C7551-4-20 AND -24,FLANGE C7880-1501,ADAPTER C7886-2;NHA 16Y020-5;EFF ON 0005 0005,0007 ON; End Item Identification: F-16A/B USAF AIRCRAFT A. 0 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 1660-01-049-6009 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.