PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T543Tool,landing Gear S

The Boeing Company Div Legacy Am&m · NSN 5120-00-142-3658 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-142-3658 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-142-3658. Primary manufacturer part number: T543.
Features
  • Tool,landing Gear S — FSC 5120
  • 1 verified cross-reference
  • Primary manufacturer: The Boeing Company Div Legacy Am&m
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Tool,landing Gear S, cataloged under National Stock Number 5120-00-142-3658, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Boeing Company Div Legacy Am&m. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTool,landing Gear S
FSC / FSG5120 — No Item Name Available (FSG 51)
ManufacturersThe Boeing Company Div Legacy Am&m (CAGE 43999)
Technical Specifications
ParameterValue
NSN5120-00-142-3658
Primary Part NumberT543
Item NameTool,landing Gear S
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Am&m
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-255-0103 INTERCHANGEABLE
Packing,preformed
3110-01-191-3230901861-2C INTERCHANGEABLE
Bearing,ball,duplex
Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings
Cross-Reference Index
Part NumberManufacturer
T543 PRIMARY The Boeing Company Div Legacy Am&m (USA)
Related Parts
5330-00-255-0103INTERCHANGEABLE
PACKING,PREFORMED
3110-01-191-3230INTERCHANGEABLE
BEARING,BALL,DUPLEX
901861-2C

Frequently Asked Questions

What is NSN 5120-00-142-3658?

NSN 5120-00-142-3658 is a Tool,landing Gear S, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-142-3658?

NSN 5120-00-142-3658 has 1 cross-referenced part number: T543 (The Boeing Company Div Legacy Am&m).

What NSN replaces 5120-00-142-3658?

There are 2 known substitutes for 5120-00-142-3658: 5330-00-255-0103, 3110-01-191-3230. Verify interchangeability with system specifications before substitution.

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