PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.1 TY1CL2Socket,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-00-243-7342 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-243-7342 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-243-7342. Primary manufacturer part number: B107.1 TY1CL2.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Drive End Outside Diameter: 1.218 INCHES MAXIMUM IN
  • Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching End Opening Depth: 0.500 INCHES MINIMUM IN
  • Wrenching Surface Size: 0.875 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-243-7342, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 12 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
NSN5120-00-243-7342
Primary Part NumberB107.1 TY1CL2
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Drive End Outside Diameter1.218 INCHES MAXIMUM IN
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching End Opening Depth0.500 INCHES MINIMUM IN
Wrenching Surface Size0.875 INCHES NOMINAL SINGLE END IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Special Markings7/8 IN. IN
Style DesignatorINTERNAL-INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Wrenching End Outside Diameter1.218 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3120-00-218-3261254838-02 INTERCHANGEABLE
Bushing,sleeve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5120-00-235-5898 INTERCHANGEABLE
Socket,socket Wrench
5120-00-242-3349 INTERCHANGEABLE
Socket,socket Wrench
5120-00-243-7339 INTERCHANGEABLE
Socket,socket Wrench
5120-00-243-7340 INTERCHANGEABLE
Socket,socket Wrench
5120-00-243-7341 INTERCHANGEABLE
Socket,socket Wrench
5120-00-243-7343J5330 INTERCHANGEABLE
Socket,socket Wrench
The Stanley Works Dba Stanley Proto
5120-00-243-7345 INTERCHANGEABLE
Socket,socket Wrench
5120-00-243-7346 INTERCHANGEABLE
Socket,socket Wrench
5120-00-243-7348 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
B107.1 TY1CL2 General Services Administration Federal Supply Service (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
AS954 Society of Automotive Engineers Inc (USA)
B107.1 CL1STB General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
SD-1228 Martin Sprocket and Gear Inc (USA)
SD-1228 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
A-A-1398 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
97-3915 Martin Sprocket and Gear Inc (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
40828 S K Hand Tool Corp (USA)
920-990026-379 Cmc Electronics Inc (CAN)
G41W2965-33 Department of the Navy (USA)
628NR Thorsen P S Co of Massachusetts (USA)
B107.1 The American Society of Mechanical Engineers (USA)
Related Parts
3120-00-218-3261INTERCHANGEABLE
BUSHING,SLEEVE
254838-02
5120-00-235-5898INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-242-3349INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7339INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7340INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7341INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7343INTERCHANGEABLE
SOCKET,SOCKET WRENCH
J5330
5120-00-243-7345INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7346INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7348INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7350INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-243-7351INTERCHANGEABLE
SOCKET,SOCKET WRENCH
J5316

Frequently Asked Questions

What is NSN 5120-00-243-7342?

NSN 5120-00-243-7342 is a Socket,socket Wrench, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-243-7342?

NSN 5120-00-243-7342 has 15 cross-referenced part numbers: B107.1 TY1CL2 (General Services Administration Federal Supply Service), AS954 TY1CL1STB (General Services Administration Federal Supply Service), AS954 (Society of Automotive Engineers Inc), B107.1 CL1STB (General Services Administration Federal Supply Service), AS954 (Sae International Dba Sae International) and 10 more.

What NSN replaces 5120-00-243-7342?

There are 12 known substitutes for 5120-00-243-7342: 3120-00-218-3261, 5120-00-235-5898, 5120-00-242-3349 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.1 TY1CL2?

Key specifications for B107.1 TY1CL2: Material: STEEL OVERALL; Features Provided: MANUAL TOOL; Drive End Outside Diameter: 1.218 INCHES MAXIMUM IN; Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-243-7342 still in active supply?

NSN 5120-00-243-7342 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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