Heat Exchanger, Air to Air, Aircra1660-01-717-7477
NSN 1660-01-717-7477 · NIIN 017177477 · Part number N156951
Lockheed Martin Corporation Div Rms - Manassas · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 52088
Government record, cited
NSN 1660-01-717-7477 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-717-7477. Manufacturer of record part number: N156951.
Also searched as1660-01-717-7477 ·
1660017177477 ·
NIIN 017177477 ·
01-717-7477 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 52088 · N156951 · TI22-6UHX1-1
Nearby stock numbers← 1660-01-717-7428 Duct Assembly, Air Conditioning-H
·
1660-01-717-8099 Heat Exchanger, Air to Air, Aircra →
Features
Heat Exchanger,air to Air,aircra — FSC 1660
2 manufacturer part numbers on file
Manufacturer of record: Lockheed Martin Corporation Div Rms - Manassas
Identification
NSN: 1660-01-717-7477
NIIN: 017177477
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: N156951
Manufacturer: Lockheed Martin Corporation Div Rms - Manassas
General Description
The Heat Exchanger,air to Air,aircra, cataloged under National Stock Number 1660-01-717-7477, 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 Lockheed Martin Corporation Div Rms - Manassas. The record lists 2 manufacturer part numbers 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 Air,aircra
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Lockheed Martin Corporation Div Rms - Manassas (CAGE 52088)
Technical Specifications
Parameter
Value
NSN
1660-01-717-7477
Primary Part Number
N156951
Item Name
Heat Exchanger,air to Air,aircra
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Lockheed Martin Corporation Div Rms - Manassas (USA)
No interchangeability data on file.
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 1660-01-717-7477?
NSN 1660-01-717-7477 is a Heat Exchanger,air to Air,aircra, manufactured by Lockheed Martin Corporation Div Rms - Manassas, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-717-7477?
NSN 1660-01-717-7477 has 2 manufacturer part numbers on file: TI22-6UHX1-1 (Lockheed Martin Corporation Div Rms - Manassas), N156951 (Lockheed Martin Corporation Div Rms - Manassas).
Is NSN 1660-01-717-7477 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 1660-01-717-7477?
NSN 1660-01-717-7477 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.