The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-204-7527, 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 The Boeing Company Div Legacy Am&m. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-204-7527 |
| Primary Part Number | L5351008-003 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Height | 2.500 INCHES NOMINAL IN |
| Aircraft Location | AFT AVIONICS AIR SUPPLY ELBOW |
| Material | GLASS FIBER |
| Aircraft Mission Design Series | B-1B |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L5351008-003 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| L5351008-003 | 3/9 Design control — primary reference The Boeing Company Dba Boeing |
NSN 1660-01-204-7527 is a Duct Assembly,air Conditioning-H, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-204-7527 has 1 manufacturer part number on file: L5351008-003 (The Boeing Company Div Legacy Am&m).
Key specifications for L5351008-003: Overall Length: 7.250 INCHES NOMINAL IN; Height: 2.500 INCHES NOMINAL IN; Special Features: 2.500 IN. OD; BEADED BOTH ENDS PER LP034-0006; NHA L5351000 IN; Aircraft Location: AFT AVIONICS AIR SUPPLY ELBOW. 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 1660-01-204-7527 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.