NSN 1630-01-686-3303 · NIIN 016863303 · Part number 537-117
Leonardo Spa Aeronautics Division - Torino Site · FSC 1630 — Aircraft Wheel and Brake Systems · FSG 16 — Aircraft Components and Accessories · CAGE A0019
Government record, cited
NSN 1630-01-686-3303 — this item is cataloged by the U.S. Government under National Stock Number 1630-01-686-3303. Manufacturer of record part number: 537-117.
Also searched as1630-01-686-3303 ·
1630016863303 ·
NIIN 016863303 ·
01-686-3303 ·
FSC 1630 Aircraft Wheel and Brake Systems · CAGE A0019 · 537-117
Manufacturer of record: Leonardo Spa Aeronautics Division - Torino Site
Identification
NSN: 1630-01-686-3303
NIIN: 016863303
FSC: 1630 — Aircraft Wheel and Brake Systems
FSG: 16 — Aircraft Components and Accessories
Primary part number: 537-117
Manufacturer: Leonardo Spa Aeronautics Division - Torino Site
General Description
The Heat,sink Assembly, cataloged under National Stock Number 1630-01-686-3303, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Leonardo Spa Aeronautics Division - Torino Site. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
1630-01-686-3303
Primary Part Number
537-117
Item Name
Heat,sink Assembly
FSC / FSG
1630 / 16 — Aircraft Wheel and Brake Systems
Manufacturer
Leonardo Spa Aeronautics Division - Torino Site
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Leonardo Spa Aeronautics Division - Torino Site (ITA)
Reference documents
Reference
Meaning
537-117
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 1630 — Aircraft Wheel and Brake Systems
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1630-00-027-5238
SEAT AND POPPET
1630-00-047-2409
1630-00-047-2409 · Item name not on file
1630-00-075-6471
1630-00-075-6471 · Item name not on file
1630-00-083-0381
1630-00-083-0381 · Item name not on file
1630-00-093-9628
SLEEVE
1630-00-111-2926
CYLINDER,BRAKE
1630-00-347-0291
ARM ASSY,BRAKE VALV
1630-01-650-2997
STATOR TUBE,TORQUE,BRAKE
Frequently Asked Questions
What is NSN 1630-01-686-3303?
NSN 1630-01-686-3303 is a Heat,sink Assembly, manufactured by Leonardo Spa Aeronautics Division - Torino Site, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
What part numbers are listed for NSN 1630-01-686-3303?
NSN 1630-01-686-3303 has 1 manufacturer part number on file: 537-117 (Leonardo Spa Aeronautics Division - Torino Site).
What are the specifications of 537-117?
Key specifications for 537-117: Part Name Assigned by Controlling Agency: HEAT SINK ASSEMBLY BRAKE SYSTEM; End Item Identification: BRAKE SYSTEM AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1630-01-686-3303 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.