The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-164-2133, 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 1 specification, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-164-2133 |
| Primary Part Number | L4801514-007 |
| 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 |
| Supplementary Features | FUNCTIONAL DESCRIPTION:USED AS LH MAIN FUEL TANK CROSSFEED VALVE INLET ELBOW |
| 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 |
|---|---|
| L4801514-007 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| L4801514-005 | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| L4801514-003 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
NSN 1660-01-164-2133 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 1660-01-164-2133 has 2 manufacturer part numbers on file: L4801514-007 (The Boeing Company Div Legacy Am&m), L4801514-005 (The Boeing Company Div Legacy Am&m).
Key specifications for L4801514-007: Supplementary Features: FUNCTIONAL DESCRIPTION:USED AS LH MAIN FUEL TANK CROSSFEED VALVE INLET ELBOW; Special Features: MACHINED FROM AL ALLOY CASTING PER MIL-A-21180,CLASS II; MAIN TUBE BENT 26 DEG; 4.440 IN. I.D.; 2 ENDS BEADED; 4.00 IN. I.D. TUBE ORIGINATING AT BEND IN MAIN TUBE,END MACHINED WITH 8 0.281 IN. DIA HOLES; NHA L4802500 IN; End Item Identification: ACFT MODEL B-1B. 1 specification is 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 1660-01-164-2133 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.