Heat Exchanger, Fluid to Fluid, Ai1660-01-701-5355
NSN 1660-01-701-5355 · NIIN 017015355 · Part number 123SCEC5221-25
Northrop Grumman Systems Corporation · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 26512
Government record, cited
NSN 1660-01-701-5355 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-701-5355. Manufacturer of record part number: 123SCEC5221-25.
Also searched as1660-01-701-5355 ·
1660017015355 ·
NIIN 017015355 ·
01-701-5355 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 26512 · 123SCEC5221-25 · 60716-800
Manufacturer of record: Northrop Grumman Systems Corporation
Identification
NSN: 1660-01-701-5355
NIIN: 017015355
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 123SCEC5221-25
Manufacturer: Northrop Grumman Systems Corporation
General Description
The Heat Exchanger,fluid to Fluid,ai, cataloged under National Stock Number 1660-01-701-5355, 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 Northrop Grumman Systems Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-701-5355
Primary Part Number
123SCEC5221-25
Item Name
Heat Exchanger,fluid to Fluid,ai
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 1660-01-701-5355?
NSN 1660-01-701-5355 is a Heat Exchanger,fluid to Fluid,ai, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-701-5355?
NSN 1660-01-701-5355 has 2 manufacturer part numbers on file: 123SCEC5221-25 (Northrop Grumman Systems Corporation), 60716-800 (Ametek Thermal Systems Inc).
What are the specifications of 123SCEC5221-25?
Key specifications for 123SCEC5221-25: Part Name Assigned by Controlling Agency: HEAT EXCHANGER; End Item Identification: E-2D ADVANCED HAWKEYE. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-701-5355 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 1660-01-701-5355?
NSN 1660-01-701-5355 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.