NSN 1660-01-173-9740 · NIIN 011739740 · Part number L5346029-001
The Boeing Company Div Legacy Am&m · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 43999
Government record, cited
NSN 1660-01-173-9740 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-173-9740. Manufacturer of record part number: L5346029-001.
Also searched as1660-01-173-9740 ·
1660011739740 ·
NIIN 011739740 ·
01-173-9740 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 43999 · L5346029-001
Nearby stock numbers← 1660-01-173-9739 Duct Assembly, Air Conditioning-H
·
1660-01-173-9741 Duct Assembly, Air Conditioning-H →
Features
Duct Assembly,air Conditioning-H — FSC 1660
Aircraft Station Number: YF1114.6
Aircraft Location: MAIN WHEEL WELL CENTER BAY COOLING AIR SEAL ASSEMBLY
Aircraft Mission Design Series: B-1B AIRCRAFT
1 manufacturer part number on file
Manufacturer of record: The Boeing Company Div Legacy Am&m
Identification
NSN: 1660-01-173-9740
NIIN: 011739740
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: L5346029-001
Manufacturer: The Boeing Company Div Legacy Am&m
General Description
The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-173-9740, 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 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-173-9740
Primary Part Number
L5346029-001
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
Aircraft Station Number
YF1114.6
Aircraft Location
MAIN WHEEL WELL CENTER BAY COOLING AIR SEAL ASSEMBLY
Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-001-1693
DUCT ASSEMBLY,AIR CONDITIONING-H
1660-00-001-1754
BAFFLE,AIR
1660-00-001-2491
CAGE,BYPASS VALVE
1660-00-001-2493
1660-00-001-2493 · Item name not on file
1660-00-001-2496
CONTROL BOX,ELECTRICAL-ELECTRONI
1660-00-001-2497
1660-00-001-2497 · Item name not on file
1660-00-001-4130
1660-00-001-4130 · Item name not on file
1660-00-001-4479
CONTROLLER,AIR PRESSURE,AIRCRAFT
Frequently Asked Questions
What is NSN 1660-01-173-9740?
NSN 1660-01-173-9740 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.
What part numbers are listed for NSN 1660-01-173-9740?
NSN 1660-01-173-9740 has 1 manufacturer part number on file: L5346029-001 (The Boeing Company Div Legacy Am&m).
What are the specifications of L5346029-001?
Key specifications for L5346029-001: Aircraft Station Number: YF1114.6; Special Features: CONSIST OF ONE SEAL; ONE DUCT ASSEMBLY; ONE BRACKET; TWO SCREWS; NHA L5408702; Aircraft Location: MAIN WHEEL WELL CENTER BAY COOLING AIR SEAL ASSEMBLY; End Item Identification: B-1B AIRCRAFT. 3 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-173-9740 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1660-01-173-9740?
NSN 1660-01-173-9740 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.