NSN 1660-00-449-2210 · NIIN 004492210 · Part number 40R342
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 73760
Government record, cited
NSN 1660-00-449-2210 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-449-2210. Manufacturer of record part number: 40R342.
Also searched as1660-00-449-2210 ·
1660004492210 ·
NIIN 004492210 ·
00-449-2210 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 73760 · 40R342
Manufacturer of record: Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
Identification
NSN: 1660-00-449-2210
NIIN: 004492210
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 40R342
Manufacturer: Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
General Description
The Valve Asy, cataloged under National Stock Number 1660-00-449-2210, 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 Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Valve Asy
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (CAGE 73760)
Technical Specifications
Parameter
Value
NSN
1660-00-449-2210
Primary Part Number
40R342
Item Name
Valve Asy
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA)
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.
1660-00-006-4472
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 1660-00-449-2210?
NSN 1660-00-449-2210 is a Valve Asy, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-00-449-2210?
NSN 1660-00-449-2210 has 1 manufacturer part number on file: 40R342 (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Is NSN 1660-00-449-2210 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 1660-00-449-2210?
NSN 1660-00-449-2210 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.