PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43523Gearbox Assembly,aircraft

Heligear Acquisition Co. Dba Northstar Aerospace, Inc. · NSN 1680-00-510-2499 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-510-2499 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-510-2499. Primary manufacturer part number: 43523.
Features
  • Gearbox Assembly,aircraft — FSC 1680
  • 1 verified cross-reference
  • Primary manufacturer: Heligear Acquisition Co. Dba Northstar Aerospace, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Gearbox Assembly,aircraft, cataloged under National Stock Number 1680-00-510-2499, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Heligear Acquisition Co. Dba Northstar Aerospace, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGearbox Assembly,aircraft
FSC / FSG1680 — No Item Name Available (FSG 16)
ManufacturersHeligear Acquisition Co. Dba Northstar Aerospace, Inc. (CAGE 22907)
Technical Specifications
ParameterValue
NSN1680-00-510-2499
Primary Part Number43523
Item NameGearbox Assembly,aircraft
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerHeligear Acquisition Co. Dba Northstar Aerospace, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5120-00-221-7960 INTERCHANGEABLE
Handle,socket Wrench
5950-00-463-8101 INTERCHANGEABLE
Transformer,power
5950-00-470-9376 INTERCHANGEABLE
Transformer,power
6520-00-584-269988-0394 INTERCHANGEABLE
Elevator,periosteal
Boss Instruments, Limited Inc
5845-00-757-327243523 INTERCHANGEABLE
Board Assembly
L3harris Technologies, Inc.
2990-00-851-7388T-8434 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5977-01-188-4589435-23 INTERCHANGEABLE
Electrode
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5120-01-301-350543523 INTERCHANGEABLE
Removal Tool,seal C
Bourns Inc
7045-01-586-236343523 INTERCHANGEABLE
Disk,nonflexible
Verbatim Corp
Cross-Reference Index
Part NumberManufacturer
43523 PRIMARY Heligear Acquisition Co. Dba Northstar Aerospace, Inc. (USA)
Related Parts
5120-00-221-7960INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5950-00-463-8101INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-470-9376INTERCHANGEABLE
TRANSFORMER,POWER
6520-00-584-2699INTERCHANGEABLE
ELEVATOR,PERIOSTEAL
88-0394
5845-00-757-3272INTERCHANGEABLE
BOARD ASSEMBLY
43523
2990-00-851-7388INTERCHANGEABLE
MUFFLER,EXHAUST
T-8434
5977-01-188-4589INTERCHANGEABLE
ELECTRODE
435-23
5120-01-301-3505INTERCHANGEABLE
REMOVAL TOOL,SEAL C
43523
7045-01-586-2363INTERCHANGEABLE
DISK,NONFLEXIBLE
43523

Frequently Asked Questions

What is NSN 1680-00-510-2499?

NSN 1680-00-510-2499 is a Gearbox Assembly,aircraft, manufactured by Heligear Acquisition Co. Dba Northstar Aerospace, Inc., classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-510-2499?

NSN 1680-00-510-2499 has 1 cross-referenced part number: 43523 (Heligear Acquisition Co. Dba Northstar Aerospace, Inc.).

What NSN replaces 1680-00-510-2499?

There are 9 known substitutes for 1680-00-510-2499: 5120-00-221-7960, 5950-00-463-8101, 5950-00-470-9376 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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