PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-W-641 TY4CL4STAExtension,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-01-193-8537 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-193-8537 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-193-8537. Primary manufacturer part number: GGG-W-641 TY4CL4STA.
Features
  • Extension,socket Wrench — FSC 5120
  • Outside Diameter: 1.500 INCHES NOMINAL IN
  • Surface Treatment: CHROMIUM AND NICKEL AND OXIDE AND ZINC OVERALL
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Drive Surface Size: 0.750 INCHES NOMINAL BOTH ENDS IN
  • Nondefinitive Spec/std Data: 4 TYPE AND 4 CLASS AND A STYLE
  • Style Designator: RIGID
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-193-8537, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-193-8537
Primary Part NumberGGG-W-641 TY4CL4STA
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Outside Diameter1.500 INCHES NOMINAL IN
Surface TreatmentCHROMIUM AND NICKEL AND OXIDE AND ZINC OVERALL
MaterialSTEEL OVERALL
Drive End ShapeSQUARE FIRST END INTERNAL
Drive Surface Size0.750 INCHES NOMINAL BOTH ENDS IN
Nondefinitive Spec/std Data4 TYPE AND 4 CLASS AND A STYLE
Style DesignatorRIGID
Drive End ShapeSQUARE SECOND END EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-154-9074212116 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
2815-01-121-512147163 INTERCHANGEABLE
Arm,rocker
Sabre Engines Ltd
Cross-Reference Index
Part NumberManufacturer
GGG-W-641 TY4CL4STA General Services Administration Federal Supply Service (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
47163 S K Hand Tool Corp (USA)
Related Parts
5330-00-154-9074INTERCHANGEABLE
SEAL,PLAIN ENCASED
212116
2815-01-121-5121INTERCHANGEABLE
ARM,ROCKER
47163

Frequently Asked Questions

What is NSN 5120-01-193-8537?

NSN 5120-01-193-8537 is a Extension,socket Wrench, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-193-8537?

NSN 5120-01-193-8537 has 3 cross-referenced part numbers: GGG-W-641 TY4CL4STA (General Services Administration Federal Supply Service), GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC), 47163 (S K Hand Tool Corp).

What NSN replaces 5120-01-193-8537?

There are 2 known substitutes for 5120-01-193-8537: 5330-00-154-9074, 2815-01-121-5121. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-W-641 TY4CL4STA?

Key specifications for GGG-W-641 TY4CL4STA: Outside Diameter: 1.500 INCHES NOMINAL IN; Surface Treatment: CHROMIUM AND NICKEL AND OXIDE AND ZINC OVERALL; Material: STEEL OVERALL; Drive End Shape: SQUARE FIRST END INTERNAL. 9 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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