NSN 1660-01-242-6589 · NIIN 012426589 · Part number L5351447-021
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 1660-01-242-6589 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-242-6589. Manufacturer of record part number: L5351447-021.
Also searched as1660-01-242-6589 ·
1660012426589 ·
NIIN 012426589 ·
01-242-6589 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 43999 · L5351447-021
Nearby stock numbers← 1660-01-242-6588 Duct Assembly, Air Conditioning-H
·
1660-01-242-6590 Duct Assembly, Air Conditioning-H →
Features
Duct Assembly,air Conditioning-H — FSC 1660
Supplementary Features: FUNCTIONAL DESCRIPTION:USED ON MAIN WHEEL WELL COOLING AIR DUCT ASSY
1 manufacturer part number on file
Manufacturer of record: The Boeing Company Div Legacy Am&m
Identification
NSN: 1660-01-242-6589
NIIN: 012426589
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: L5351447-021
Manufacturer: The Boeing Company Div Legacy Am&m
General Description
The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-242-6589, 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 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
1660-01-242-6589
Primary Part Number
L5351447-021
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 ON MAIN WHEEL WELL COOLING AIR DUCT ASSY
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.
1660-00-006-4472
FLANGE,VALVE BODY
1660-00-009-5646
ADAPTER ASSEMBLY,BELLOWS
1660-00-019-8389
1660-00-019-8389 · Item name not on file
1660-00-019-8399
1660-00-019-8399 · Item name not on file
1660-00-031-5285
1660-00-031-5285 · Item name not on file
1660-00-302-4390
PISTON,REGULATING V
1660-00-441-0575
PISTON
1660-01-601-0729
ETHERNET SWITCH
Frequently Asked Questions
What is NSN 1660-01-242-6589?
NSN 1660-01-242-6589 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 1660-01-242-6589?
NSN 1660-01-242-6589 has 1 manufacturer part number on file: L5351447-021 (The Boeing Company Div Legacy Am&m).
What are the specifications of L5351447-021?
Key specifications for L5351447-021: Supplementary Features: FUNCTIONAL DESCRIPTION:USED ON MAIN WHEEL WELL COOLING AIR DUCT ASSY; Special Features: CONSIST OF 4 NUTPLATE,1 WELD ASSY; SAME AS -001; OPPOSITE P/N -022; LOCATED YF1024; End Item Identification: ACFT MODEL B-1B. 1 specification is documented in the U.S. Government catalog.
Is NSN 1660-01-242-6589 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 1660-01-242-6589?
NSN 1660-01-242-6589 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.