PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-W-646 TY1CL1STBFMASZ1.750Head,crowfoot Socket Wrench

General Services Administration Federal Supply Service · NSN 5120-00-288-6502 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-288-6502 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-288-6502. Primary manufacturer part number: GGG-W-646 TY1CL1STBFMASZ1.750.
Features
  • Head,crowfoot Socket Wrench — FSC 5120
  • Opening Width: 1.796 INCHES NOMINAL IN
  • Torque Capacity: 1850.0 INCH-POUNDS NOMINAL IN
  • Features Provided: REVERSIBLE RATCHET
  • Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE AND A FORM AND 1.750 SIZE
  • Style Designator: OPEN RATCHET
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Head,crowfoot Socket Wrench, cataloged under National Stock Number 5120-00-288-6502, 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 10 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-288-6502
Primary Part NumberGGG-W-646 TY1CL1STBFMASZ1.750
Item NameHead,crowfoot Socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Opening Width1.796 INCHES NOMINAL IN
Torque Capacity1850.0 INCH-POUNDS NOMINAL IN
Features ProvidedREVERSIBLE RATCHET
Wrenching Surface ShapeHEXAGON SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE AND A FORM AND 1.750 SIZE
Style DesignatorOPEN RATCHET
Surface TreatmentCHROMIUM AND NICKEL OVERALL
Drive Surface Size0.508 INCHES NOMINAL SINGLE END IN
Head Thickness0.458 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5120-00-222-7975 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-277-36618708915 INTERCHANGEABLE
Head,crowfoot Socket Wrench
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-277-36628708916 INTERCHANGEABLE
Head,crowfoot Socket Wrench
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-277-36638708917 INTERCHANGEABLE
Head,crowfoot Socket Wrench
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-277-36648708918 INTERCHANGEABLE
Head,crowfoot Socket Wrench
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-277-3665 INTERCHANGEABLE
Head,crowfoot Socket Wrench
3120-00-287-7469AA304-1 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
5120-00-288-6510 INTERCHANGEABLE
Head,crowfoot Socket Wrench
5120-00-595-8264 INTERCHANGEABLE
Head,crowfoot Socket Wrench
Cross-Reference Index
Part NumberManufacturer
GGG-W-646 TY1CL1STBFMASZ1.750 General Services Administration Federal Supply Service (USA)
A-A-3041 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-W-646 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5120-00-222-7975INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-277-3661INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH
8708915
5120-00-277-3662INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH
8708916
5120-00-277-3663INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH
8708917
5120-00-277-3664INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH
8708918
5120-00-277-3665INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH
3120-00-287-7469INTERCHANGEABLE
BEARING,SLEEVE
AA304-1
5120-00-288-6510INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH
5120-00-595-8264INTERCHANGEABLE
HEAD,CROWFOOT SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-288-6502?

NSN 5120-00-288-6502 is a Head,crowfoot 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 5120-00-288-6502?

NSN 5120-00-288-6502 has 3 cross-referenced part numbers: GGG-W-646 TY1CL1STBFMASZ1.750 (General Services Administration Federal Supply Service), A-A-3041 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), GGG-W-646 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-00-288-6502?

There are 9 known substitutes for 5120-00-288-6502: 5120-00-222-7975, 5120-00-277-3661, 5120-00-277-3662 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-W-646 TY1CL1STBFMASZ1.750?

Key specifications for GGG-W-646 TY1CL1STBFMASZ1.750: Opening Width: 1.796 INCHES NOMINAL IN; Torque Capacity: 1850.0 INCH-POUNDS NOMINAL IN; Features Provided: REVERSIBLE RATCHET; Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL. 12 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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