Heat Exchanger, Fluid to Fluid, Ai1660-01-701-2501
NSN 1660-01-701-2501 · NIIN 017012501 · Part number 7004295H04
Rtx Corporation Div Pratt & Whitney · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 55820
Government record, cited
NSN 1660-01-701-2501 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-701-2501. Manufacturer of record part number: 7004295H04.
Also searched as1660-01-701-2501 ·
1660017012501 ·
NIIN 017012501 ·
01-701-2501 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 55820 · 7004295H04 · 49-31-32 REV 2
Nearby stock numbers← 1660-01-701-1678 Heat Exchanger, Air to Air, Aircra
·
1660-01-701-3118 Adapter, Oxygen System, Aircraft →
Features
Heat Exchanger,fluid to Fluid,ai — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Rtx Corporation Div Pratt & Whitney
Identification
NSN: 1660-01-701-2501
NIIN: 017012501
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 7004295H04
Manufacturer: Rtx Corporation Div Pratt & Whitney
General Description
The Heat Exchanger,fluid to Fluid,ai, cataloged under National Stock Number 1660-01-701-2501, 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 Rtx Corporation Div Pratt & Whitney. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Catalog Facts
Item Name
Heat Exchanger,fluid to Fluid,ai
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Rtx Corporation Div Pratt & Whitney (CAGE 55820)
Technical Specifications
Parameter
Value
NSN
1660-01-701-2501
Primary Part Number
7004295H04
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 1660-01-701-2501?
NSN 1660-01-701-2501 is a Heat Exchanger,fluid to Fluid,ai, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-701-2501?
NSN 1660-01-701-2501 has 1 manufacturer part number on file: 7004295H04 (Rtx Corporation Div Pratt & Whitney).
Is NSN 1660-01-701-2501 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.
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.