NSN 1660-01-400-2900 · NIIN 014002900 · Part number 373504-7
Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 26831
Government record, cited
NSN 1660-01-400-2900 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-400-2900. Manufacturer of record part number: 373504-7.
Also searched as1660-01-400-2900 ·
1660014002900 ·
NIIN 014002900 ·
01-400-2900 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 26831 · 373504-7
Nearby stock numbers← 1660-01-400-2898 Duct Assembly, Air Conditioning-H
·
1660-01-400-2972 Diffuser, Air, Aircraft Heating an →
Features
Duct Assembly,air Conditioning-H — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc
Identification
NSN: 1660-01-400-2900
NIIN: 014002900
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 373504-7
Manufacturer: Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc
General Description
The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-400-2900, 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 Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
1660-01-400-2900
Primary Part Number
373504-7
Item Name
Duct Assembly,air Conditioning-H
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc
Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc (USA)
Reference documents
Reference
Meaning
373504-7
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
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 1660-01-400-2900?
NSN 1660-01-400-2900 is a Duct Assembly,air Conditioning-H, manufactured by Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-400-2900?
NSN 1660-01-400-2900 has 1 manufacturer part number on file: 373504-7 (Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc).
What are the specifications of 373504-7?
Key specifications for 373504-7: End Item Identification: C-130B. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-400-2900 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 1660-01-400-2900?
NSN 1660-01-400-2900 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.