PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T518Socket,socket Wrench

The Boeing Company Div Legacy Am&m · NSN 5120-00-142-3649 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-142-3649 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-142-3649. Primary manufacturer part number: T518.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL
  • Wrenching Surface Size: 1.750 INCHES NOMINAL SINGLE END IN
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • 1 verified cross-reference
  • Primary manufacturer: The Boeing Company Div Legacy Am&m
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-142-3649, 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. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-142-3649
Primary Part NumberT518
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Am&m
StatusACTIVE
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Wrenching Surface Size1.750 INCHES NOMINAL SINGLE END IN
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3455-00-187-0401716-028212 INTERCHANGEABLE
Cutter,milling,end
Doall Baltimore Company
Cross-Reference Index
Part NumberManufacturer
T518 PRIMARY The Boeing Company Div Legacy Am&m (USA)
Related Parts
3455-00-187-0401INTERCHANGEABLE
CUTTER,MILLING,END
716-028212

Frequently Asked Questions

What is NSN 5120-00-142-3649?

NSN 5120-00-142-3649 is a Socket,socket Wrench, 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 5120-00-142-3649?

NSN 5120-00-142-3649 has 1 cross-referenced part number: T518 (The Boeing Company Div Legacy Am&m).

What NSN replaces 5120-00-142-3649?

There is 1 known substitute for 5120-00-142-3649: 3455-00-187-0401. Verify interchangeability with system specifications before substitution.

What are the specifications of T518?

Key specifications for T518: Drive End Shape: SQUARE SINGLE END INTERNAL; Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL; Wrenching Surface Size: 1.750 INCHES NOMINAL SINGLE END IN; Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN. 5 total characteristics are documented in the Federal Logistics Information System.

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