Adapter, Air Inlet, Heat Exchanger1660-01-202-4526
NSN 1660-01-202-4526 · NIIN 012024526 · Part number 527398-2
Hamilton Sundstrand Corporation Dba Collins Aerospace · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 73030
Government record, cited
NSN 1660-01-202-4526 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-202-4526. Manufacturer of record part number: 527398-2.
Also searched as1660-01-202-4526 ·
1660012024526 ·
NIIN 012024526 ·
01-202-4526 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 73030 · 527398-2
Nearby stock numbers← 1660-01-202-3903 Housing and Inserts, Gear
·
1660-01-202-5177 Cover, Control →
Features
Adapter,air Inlet,heat Exchanger — FSC 1660
General Characteristics Item Description: AISI 302 SPRING TEMPER CORROSION RESISTANT STEEL; 1.392 IN. NOMINAL BODY LENGTH; 0.006 IN. NOMINAL BODY DEPTH IN
1 manufacturer part number on file
Manufacturer of record: Hamilton Sundstrand Corporation Dba Collins Aerospace
Identification
NSN: 1660-01-202-4526
NIIN: 012024526
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 527398-2
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
General Description
The Adapter,air Inlet,heat Exchanger, cataloged under National Stock Number 1660-01-202-4526, 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 Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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
1660-01-202-4526
Primary Part Number
527398-2
Item Name
Adapter,air Inlet,heat Exchanger
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Hamilton Sundstrand Corporation Dba Collins Aerospace
Status
ACTIVE
General Characteristics Item Description
AISI 302 SPRING TEMPER CORROSION RESISTANT STEEL; 1.392 IN. NOMINAL BODY LENGTH; 0.006 IN. NOMINAL BODY DEPTH IN
Hamilton Sundstrand Corporation Dba Collins Aerospace (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.
1660-00-001-1693
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 1660-01-202-4526?
NSN 1660-01-202-4526 is a Adapter,air Inlet,heat Exchanger, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-202-4526?
NSN 1660-01-202-4526 has 1 manufacturer part number on file: 527398-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
What are the specifications of 527398-2?
Key specifications for 527398-2: General Characteristics Item Description: AISI 302 SPRING TEMPER CORROSION RESISTANT STEEL; 1.392 IN. NOMINAL BODY LENGTH; 0.006 IN. NOMINAL BODY DEPTH IN; End Item Identification: AIRCRAFT B-1B. 1 specification is documented in the U.S. Government catalog.
Is NSN 1660-01-202-4526 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.