Heat Exchanger, Air to Air, Aircra1660-01-444-6978
NSN 1660-01-444-6978 · NIIN 014446978 · Part number L8602856-2
Honeywell International Inc. · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 63389
Government record, cited
NSN 1660-01-444-6978 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-444-6978. Manufacturer of record part number: L8602856-2.
Also searched as1660-01-444-6978 ·
1660014446978 ·
NIIN 014446978 ·
01-444-6978 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 63389 · L8602856-2 · L8602856-1
Nearby stock numbers← 1660-01-444-5765 Duct Assembly, Air Conditioning-H
·
1660-01-444-7054 Controller, Air Pressure, Aircraft Cabin →
Features
Heat Exchanger,air to Air,aircra — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Honeywell International Inc.
Identification
NSN: 1660-01-444-6978
NIIN: 014446978
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: L8602856-2
Manufacturer: Honeywell International Inc.
General Description
The Heat Exchanger,air to Air,aircra, cataloged under National Stock Number 1660-01-444-6978, 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 Honeywell International Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,air to Air,aircra
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Honeywell International Inc. (CAGE 63389)
Technical Specifications
Parameter
Value
NSN
1660-01-444-6978
Primary Part Number
L8602856-2
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.
1660-00-006-4472
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 1660-01-444-6978?
NSN 1660-01-444-6978 is a Heat Exchanger,air to Air,aircra, manufactured by Honeywell International Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-444-6978?
NSN 1660-01-444-6978 has 1 manufacturer part number on file: L8602856-2 (Honeywell International Inc.).
Is NSN 1660-01-444-6978 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 1660-01-444-6978?
NSN 1660-01-444-6978 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.