PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.10MExtension,socket Wrench

The American Society of Mechanical Engineers · NSN 5120-00-240-8706 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-240-8706 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-240-8706. Primary manufacturer part number: B107.10M.
Features
  • Extension,socket Wrench — FSC 5120
  • Outside Diameter: 0.665 INCHES MAXIMUM IN
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Material: STEEL OVERALL
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.500 INCHES NOMINAL BOTH ENDS IN
  • Drive End Shape: SQUARE SECOND END EXTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-00-240-8706, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-240-8706
Primary Part NumberB107.10M
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Outside Diameter0.665 INCHES MAXIMUM IN
Drive End ShapeSQUARE FIRST END INTERNAL
MaterialSTEEL OVERALL
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.500 INCHES NOMINAL BOTH ENDS IN
Drive End ShapeSQUARE SECOND END EXTERNAL
Style DesignatorRIGID
Features ProvidedMANUAL TOOL
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-227-8074JHWS-115P INTERCHANGEABLE
Extension,socket Wrench
Williams J H Industrial Products Inc
5120-00-227-8079 INTERCHANGEABLE
Extension,socket Wrench
5120-00-227-8105 INTERCHANGEABLE
Extension,socket Wrench
5120-00-227-8107 INTERCHANGEABLE
Extension,socket Wrench
5120-00-240-8704 INTERCHANGEABLE
Extension,socket Wrench
5120-00-240-8705 INTERCHANGEABLE
Extension,socket Wrench
5120-00-243-1689 INTERCHANGEABLE
Extension,socket Wrench
5120-00-243-1691 INTERCHANGEABLE
Extension,socket Wrench
5120-00-243-1693 INTERCHANGEABLE
Extension,socket Wrench
5120-00-243-1697 INTERCHANGEABLE
Extension,socket Wrench
Cross-Reference Index
Part NumberManufacturer
B107.10M The American Society of Mechanical Engineers (USA)
AS4283 Sae International Dba Sae International (USA)
GGG-W-641 TY4CL4STA General Services Administration Federal Supply Service (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.10M TY2CL2ST1 General Services Administration Federal Supply Service (USA)
AS4283 Society of Automotive Engineers Inc (USA)
A-A-2170 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AS4283 TY2CL2 General Services Administration Federal Supply Service (USA)
B107.10 TY2CL2STA General Services Administration Federal Supply Service (USA)
B107.10 The American Society of Mechanical Engineers (USA)
Related Parts
5120-00-227-8074INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
JHWS-115P
5120-00-227-8079INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-227-8105INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-227-8107INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-240-8704INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-240-8705INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-243-1689INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-243-1691INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-243-1693INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-243-1697INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-243-7325INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-243-7326INTERCHANGEABLE
EXTENSION,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-240-8706?

NSN 5120-00-240-8706 is a Extension,socket Wrench, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-240-8706?

NSN 5120-00-240-8706 has 10 cross-referenced part numbers: B107.10M (The American Society of Mechanical Engineers), AS4283 (Sae International Dba Sae International), GGG-W-641 TY4CL4STA (General Services Administration Federal Supply Service), GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC), B107.10M TY2CL2ST1 (General Services Administration Federal Supply Service) and 5 more.

What NSN replaces 5120-00-240-8706?

There are 12 known substitutes for 5120-00-240-8706: 5120-00-227-8074, 5120-00-227-8079, 5120-00-227-8105 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.10M?

Key specifications for B107.10M: Outside Diameter: 0.665 INCHES MAXIMUM IN; Overall Length: 30.000 INCHES NOMINAL IN; Drive End Shape: SQUARE FIRST END INTERNAL; Material: STEEL OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-240-8706 still in active supply?

NSN 5120-00-240-8706 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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