The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-209-1534, 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 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-209-1534 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Aircraft Location | DUCT, OUTLET PRIMARY HEAT EXCHANGER |
| Aircraft Mission Design Series | F-16A/B A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 16Y223-805 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-209-1534 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-209-1534: Special Features: CONSIST OF TWENTY-FIVE DUCTS, 2.000 IN. OD X 0.020 IN. X 5.000 IN., -23 TUBE 1.000 IN. X 0.020 IN. X 1.000 IN., -21 DUCT 2.000 IN. OD X 0.020 IN. X 3.000 IN., -19 TUBE 0.500 IN. OD X 0.020 IN. X 1.000 IN., -17 TUBE 0.500 IN. OD X 0.020 IN. X 1.000 IN., ALL MIL-T-88808, FLANGE, FIVE COUPLING; SUPERCEDED 16Y223-5 NI PER ECN 2G512/1104; NHA 16Y020-5; EFF ON 6D 0097 9999 IN; Aircraft Location: DUCT, OUTLET PRIMARY HEAT EXCHANGER; End Item Identification: F-16A/B NETHERLANDS AIRCRAFT A; Aircraft Mission Design Series: F-16A/B A. 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.
NSN 1660-01-209-1534 has DEMIL Code B. 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.