The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-407-6136, 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 Lockheed Martin Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-407-6136 |
| Primary Part Number | 903005965-111 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY 6061 |
| Aircraft Mission Design Series | MC-130E |
| 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 |
|---|---|
| 903005965-111 | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 903005965-111 | 3/9 Design control — primary reference U.S. Government activity |
NSN 1660-01-407-6136 is a Duct Assembly,air Conditioning-H, manufactured by Lockheed Martin Corporation, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-407-6136 has 1 manufacturer part number on file: 903005965-111 (Lockheed Martin Corporation).
Key specifications for 903005965-111: Overall Length: 6.390 INCHES NOMINAL IN; Overall Width: 5.880 INCHES NOMINAL IN; Special Features: NAME: DUCT ADAPTER,ASSY; TWO PORTS, ONE 3.000 IN. DIA; 2ND 4.000 IN. DIA IN; End Item Identification: P/N20220. 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.