Heat Exchanger, Air to Water, Airc1660-01-224-3965
NSN 1660-01-224-3965 · NIIN 012243965 · Part number 77738000-101
Triumph Thermal Systems - Maryland, Inc. · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 01359
Government record, cited
NSN 1660-01-224-3965 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-224-3965. Manufacturer of record part number: 77738000-101.
Also searched as1660-01-224-3965 ·
1660012243965 ·
NIIN 012243965 ·
01-224-3965 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 01359 · 77738000-101
Nearby stock numbers← 1660-01-224-3964 Heat Exchanger, Air to Water, Airc
·
1660-01-224-5608 Bellows, Pressure →
Features
Heat Exchanger,air to Water,airc — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Triumph Thermal Systems - Maryland, Inc.
Identification
NSN: 1660-01-224-3965
NIIN: 012243965
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 77738000-101
Manufacturer: Triumph Thermal Systems - Maryland, Inc.
General Description
The Heat Exchanger,air to Water,airc, cataloged under National Stock Number 1660-01-224-3965, 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 Triumph Thermal Systems - Maryland, Inc.. 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
Heat Exchanger,air to Water,airc
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Triumph Thermal Systems - Maryland, Inc. (CAGE 01359)
Technical Specifications
Parameter
Value
NSN
1660-01-224-3965
Primary Part Number
77738000-101
Item Name
Heat Exchanger,air to Water,airc
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
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 1660-01-224-3965?
NSN 1660-01-224-3965 is a Heat Exchanger,air to Water,airc, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-224-3965?
NSN 1660-01-224-3965 has 1 manufacturer part number on file: 77738000-101 (Triumph Thermal Systems - Maryland, Inc.).
Is NSN 1660-01-224-3965 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 1660-01-224-3965?
NSN 1660-01-224-3965 has DEMIL Code B. 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.