PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.1Socket,socket Wrench

The American Society of Mechanical Engineers · NSN 5120-00-239-0018 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-239-0018 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-239-0018. Primary manufacturer part number: B107.1.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Size: 0.625 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-239-0018, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 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
NSN5120-00-239-0018
Primary Part NumberB107.1
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
MaterialSTEEL OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.625 INCHES NOMINAL SINGLE END IN
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End ShapeSQUARE SINGLE END INTERNAL
Special Markings5/8 IN. IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-034-7542EY5-1-3 INTERCHANGEABLE
Heater,thermal Release
Ellis & Watts International, Llc
5120-00-235-5809 INTERCHANGEABLE
Socket,socket Wrench
5120-00-235-5879 INTERCHANGEABLE
Socket,socket Wrench
5120-00-239-0017 INTERCHANGEABLE
Socket,socket Wrench
5120-00-241-3185 INTERCHANGEABLE
Socket,socket Wrench
5120-00-277-1463FDS121 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-277-1464 INTERCHANGEABLE
Socket,socket Wrench
5120-00-277-4252 INTERCHANGEABLE
Socket,socket Wrench
6505-00-515-869942420 INTERCHANGEABLE
Vitamin E Capsules
Goldline Laboratories, Inc. Dba Goldline Laboratories
6105-00-587-1969810071 INTERCHANGEABLE
Motor,air
Balcrank Products Inc
Cross-Reference Index
Part NumberManufacturer
B107.1 The American Society of Mechanical Engineers (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
B107.1 TY1CL2 General Services Administration Federal Supply Service (USA)
LT20 Bonney Forge Corp (USA)
AS954 Society of Automotive Engineers Inc (USA)
B107.1 CL1STB General Services Administration Federal Supply Service (USA)
A-A-1403 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AS954 Sae International Dba Sae International (USA)
42420 S K Hand Tool Corp (USA)
BD-1220 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
Related Parts
5999-00-034-7542INTERCHANGEABLE
HEATER,THERMAL RELEASE
EY5-1-3
5120-00-235-5809INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-235-5879INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-239-0017INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-241-3185INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-277-1463INTERCHANGEABLE
SOCKET,SOCKET WRENCH
FDS121
5120-00-277-1464INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-277-4252INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6505-00-515-8699INTERCHANGEABLE
VITAMIN E CAPSULES
42420
6105-00-587-1969INTERCHANGEABLE
MOTOR,AIR
810071
5120-00-596-0836INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5340-00-853-4192INTERCHANGEABLE
TIP,FURNITURE LEG
LT-20

Frequently Asked Questions

What is NSN 5120-00-239-0018?

NSN 5120-00-239-0018 is a Socket,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 5120-00-239-0018?

NSN 5120-00-239-0018 has 11 cross-referenced part numbers: B107.1 (The American Society of Mechanical Engineers), GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC), AS954 TY1CL1STB (General Services Administration Federal Supply Service), B107.1 TY1CL2 (General Services Administration Federal Supply Service), LT20 (Bonney Forge Corp) and 6 more.

What NSN replaces 5120-00-239-0018?

There are 12 known substitutes for 5120-00-239-0018: 5999-00-034-7542, 5120-00-235-5809, 5120-00-235-5879 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.1?

Key specifications for B107.1: Material: STEEL OVERALL; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Style Designator: INTERNAL-INTERNAL; Surface Treatment: CHROMIUM OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-239-0018 still in active supply?

NSN 5120-00-239-0018 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.
PartsTable Design LLC · partstable.com