The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-319-6366, 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 Marine Electric Systems Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-319-6366 |
| Primary Part Number | 3A97003-105 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Marine Electric Systems Inc |
| Status | ACTIVE |
| Aircraft Location | FANGE-ENGINE BLEED AIR DUCTING |
| Material | STEEL CORROSION RESISTING |
| Aircraft Mission Design Series | C-141 |
| 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 |
|---|---|
| 3A97003-105 | Marine Electric Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 55342-1-175 | 3/9 Design control — primary reference U.S. Government activity |
| 55342-1-175 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation |
| 3A97003-105 | 5/2 Secondary reference U.S. Government activity |
NSN 1660-01-319-6366 is a Duct Assembly,air Conditioning-H, manufactured by Marine Electric Systems Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-319-6366 has 1 manufacturer part number on file: 3A97003-105 (Marine Electric Systems Inc).
Key specifications for 3A97003-105: Overall Length: 1.760 INCHES NOMINAL IN; Special Features: TUBE DIA. 1.750; Aircraft Location: FANGE-ENGINE BLEED AIR DUCTING; Material: STEEL CORROSION RESISTING. 3 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 1660-01-319-6366 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.