The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-00-512-9231, 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 Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-00-512-9231 |
| Primary Part Number | 32-83186-1 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company |
| Status | ACTIVE |
| Aircraft Station Number | FS182.0 TO FS201.0 |
| Material Document and Classification | WW-T-789 COND O FED SPEC SINGLE MATERIAL RESPONSE |
| Aircraft Location | AUXILIARY AIR |
| Material | ALUMINUM ALLOY 6061 |
| Aircraft Mission Design Series | F-4 |
| 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 |
|---|---|
| 32-83186-1 PRIMARY | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| 32-83186-1 | American Metal Fabrication Inc (USA) |
| 32-83186-1 | The Boeing Company Div Defense (USA) |
| 32-83186-1 | Kitco Llc (USA) |
| Reference | Meaning |
|---|---|
| 32-83186 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 1660-00-512-9231 is a Duct Assembly,air Conditioning-H, manufactured by Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-512-9231 has 4 manufacturer part numbers on file: 32-83186-1 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 32-83186-1 (American Metal Fabrication Inc), 32-83186-1 (The Boeing Company Div Defense), 32-83186-1 (Kitco Llc).
Key specifications for 32-83186-1: Aircraft Station Number: FS182.0 TO FS201.0; Material Document and Classification: WW-T-789 COND O FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 16.950 INCHES NOMINAL IN; Aircraft Location: AUXILIARY AIR. 5 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 1660-00-512-9231 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.