The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-262-5659, 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 Sonfarrel Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-262-5659 |
| Primary Part Number | 16Y426-1 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Sonfarrel Inc. |
| Status | ACTIVE |
| Aircraft Location | HOUSING, SENSOR |
| Aircraft Mission Design Series | F-16C/D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 16Y426-1 | Sonfarrel Inc. (USA) |
| Reference | Meaning |
|---|---|
| 16Y426-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-262-5659 is a Duct Assembly,air Conditioning-H, manufactured by Sonfarrel Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-262-5659 has 1 manufacturer part number on file: 16Y426-1 (Sonfarrel Inc.).
Key specifications for 16Y426-1: Special Features: HOUSING IS A 1.125 TO APPROX 2.000 TUBE REDUCER WITH PROVISION FOR A SENSOR OR SWITCH; Aircraft Location: HOUSING, SENSOR; End Item Identification: F-16C/D AIRCRAFT; Aircraft Mission Design Series: F-16C/D. 2 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.