The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-00-030-4022, 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 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-030-4022 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| Aircraft Location | OUTLET FLOW VALVE |
| Material | GLASS FIBER |
| Aircraft Mission Design Series | T-29 AND C-131 |
| 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 |
|---|---|
| 240-3391593 | 5/9 Secondary reference Tracor Flight Systems Inc Sub of Tracor Inc |
| 240-3391593 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
| 240-3391593 | 5/9 Secondary reference General Dynamics Corp Convair Div Lindbergh Field Facility |
| 240-3391593 | 3/9 Design control — primary reference Bae Systems Technology Solutions & Services Inc. |
NSN 1660-00-030-4022 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-00-030-4022: Material Thickness: 0.032 INCHES NOMINAL IN; Special Features: AIRTIGHT,FIRE RESISTANCE; Aircraft Location: OUTLET FLOW VALVE; End Item Identification: T-29 AND C-131 AIRCRAFT. 4 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 1660-00-030-4022 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.