PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-W-644Wrench,socket

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5120-00-203-4766 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-203-4766 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-203-4766. Primary manufacturer part number: GGG-W-644.
Features
  • Wrench,socket — FSC 5120
  • Wrenching Surface Shape: SQUARE FIRST END INTERNAL
  • Wrenching Surface Size: 1.250 INCHES NOMINAL THIRD END IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 10 SIZE
  • Wrenching Surface Shape: HEXAGON THIRD END INTERNAL
  • Wrenching Surface Size: 0.812 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Size: 1.063 INCHES NOMINAL SECOND END IN
  • Wrenching Surface Shape: HEXAGON SECOND END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,socket, cataloged under National Stock Number 5120-00-203-4766, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5120-00-203-4766
Primary Part NumberGGG-W-644
Item NameWrench,socket
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Wrenching Surface ShapeSQUARE FIRST END INTERNAL
Wrenching Surface Size1.250 INCHES NOMINAL THIRD END IN
Nondefinitive Spec/std Data1 TYPE AND 10 SIZE
Wrenching Surface ShapeHEXAGON THIRD END INTERNAL
Wrenching Surface Size0.812 INCHES NOMINAL FIRST END IN
Wrenching Surface Size1.063 INCHES NOMINAL SECOND END IN
Wrenching Surface ShapeHEXAGON SECOND END INTERNAL
Wrenching Surface ShapeHEXAGON FOURTH END INTERNAL
Style DesignatorFOUR SOCKET CROSS
MaterialSTEEL OVERALL
Wrenching Surface Size1.500 INCHES NOMINAL FOURTH END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5970-00-137-7844T-95 INTERCHANGEABLE
Tape,insulation,electrical
Okonite Co Inc Div Headquarter Location
5310-00-159-62787743652 INTERCHANGEABLE
Nut,plain,castellated,hexagon
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-177-6821 INTERCHANGEABLE
Wrench,socket
5935-00-238-4238136BLACK INTERCHANGEABLE
Jack,tip
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5120-00-293-1289 INTERCHANGEABLE
Wrench,socket
5120-00-293-14045120-00-293-1404 INTERCHANGEABLE
Wrench,socket
General Services Administration Federal Supply Service
5120-00-293-2452 INTERCHANGEABLE
Wrench,socket
5120-00-316-9217 INTERCHANGEABLE
Wrench,socket
2910-00-358-5057K02031 INTERCHANGEABLE
Pump,fuel,cam Actuated
Hyster-Yale Group, Inc. Dba Yale Materials Handling
5120-00-449-8261TKPX1TYPEB INTERCHANGEABLE
Wrench,socket
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
GGG-W-644 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-W-644 TY1SZ10 General Services Administration Federal Supply Service (USA)
FRS T95 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
35695 Summit Tool Company (USA)
T95 Summit Tool Company (USA)
Related Parts
5970-00-137-7844INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
T-95
5310-00-159-6278INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
7743652
5120-00-177-6821INTERCHANGEABLE
WRENCH,SOCKET
5935-00-238-4238INTERCHANGEABLE
JACK,TIP
136BLACK
5120-00-293-1289INTERCHANGEABLE
WRENCH,SOCKET
5120-00-293-1404INTERCHANGEABLE
WRENCH,SOCKET
5120-00-293-1404
5120-00-293-2452INTERCHANGEABLE
WRENCH,SOCKET
5120-00-316-9217INTERCHANGEABLE
WRENCH,SOCKET
2910-00-358-5057INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
K02031
5120-00-449-8261INTERCHANGEABLE
WRENCH,SOCKET
TKPX1TYPEB
5120-00-473-6542INTERCHANGEABLE
WRENCH,SOCKET
7104985
5120-00-541-3186INTERCHANGEABLE
WRENCH,SOCKET

Frequently Asked Questions

What is NSN 5120-00-203-4766?

NSN 5120-00-203-4766 is a Wrench,socket, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-203-4766?

NSN 5120-00-203-4766 has 5 cross-referenced part numbers: GGG-W-644 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-W-644 TY1SZ10 (General Services Administration Federal Supply Service), FRS T95 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 35695 (Summit Tool Company), T95 (Summit Tool Company).

What NSN replaces 5120-00-203-4766?

There are 12 known substitutes for 5120-00-203-4766: 5970-00-137-7844, 5310-00-159-6278, 5120-00-177-6821 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-W-644?

Key specifications for GGG-W-644: Overall Length: 27.000 INCHES MINIMUM IN; Wrenching Surface Shape: SQUARE FIRST END INTERNAL; Wrenching Surface Size: 1.250 INCHES NOMINAL THIRD END IN; Nondefinitive Spec/std Data: 1 TYPE AND 10 SIZE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-203-4766 still in active supply?

NSN 5120-00-203-4766 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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