Heat Exchanger, Air to Air, Aircra1660-01-686-5594
NSN 1660-01-686-5594 · NIIN 016865594 · Part number EX00004678/87
Rolls-Royce Solutions America Inc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 72582
Government record, cited
NSN 1660-01-686-5594 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-686-5594. Manufacturer of record part number: EX00004678/87.
Also searched as1660-01-686-5594 ·
1660016865594 ·
NIIN 016865594 ·
01-686-5594 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 72582 · EX00004678/87
Nearby stock numbers← 1660-01-686-5512 Damper, Air Duct
·
1660-01-686-6132 Duct Assembly, Air Conditioning-H →
Features
Heat Exchanger,air to Air,aircra — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Rolls-Royce Solutions America Inc
Identification
NSN: 1660-01-686-5594
NIIN: 016865594
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: EX00004678/87
Manufacturer: Rolls-Royce Solutions America Inc
General Description
The Heat Exchanger,air to Air,aircra, cataloged under National Stock Number 1660-01-686-5594, 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 Rolls-Royce Solutions America 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.
Technical Specifications
Parameter
Value
NSN
1660-01-686-5594
Primary Part Number
EX00004678/87
Item Name
Heat Exchanger,air to Air,aircra
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.
1660-00-001-1693
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 1660-01-686-5594?
NSN 1660-01-686-5594 is a Heat Exchanger,air to Air,aircra, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-686-5594?
NSN 1660-01-686-5594 has 1 manufacturer part number on file: EX00004678/87 (Rolls-Royce Solutions America Inc).
What are the specifications of EX00004678/87?
Key specifications for EX00004678/87: Part Name Assigned by Controlling Agency: INTERCOOLER, MPDE. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-686-5594 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 1660-01-686-5594?
NSN 1660-01-686-5594 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.