PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-W-646Head,crowfoot Socket Wrench

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5120-00-222-7980 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-222-7980 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-222-7980. Primary manufacturer part number: GGG-W-646.
Features
  • Head,crowfoot Socket Wrench — FSC 5120
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE AND A FORM AND 1.250 SIZE
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL
  • Style Designator: OPEN RATCHET
  • Drive Surface Size: 0.381 INCHES NOMINAL SINGLE END IN
  • Features Provided: REVERSIBLE RATCHET
  • Surface Treatment: CHROMIUM AND NICKEL OVERALL
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Head,crowfoot Socket Wrench, cataloged under National Stock Number 5120-00-222-7980, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-222-7980
Primary Part NumberGGG-W-646
Item NameHead,crowfoot Socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE AND A FORM AND 1.250 SIZE
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface ShapeHEXAGON SINGLE END INTERNAL
Style DesignatorOPEN RATCHET
Drive Surface Size0.381 INCHES NOMINAL SINGLE END IN
Features ProvidedREVERSIBLE RATCHET
Surface TreatmentCHROMIUM AND NICKEL OVERALL
Head Thickness0.447 INCHES NOMINAL IN
Opening Width1.270 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-033-56679000S6502-74060REV1PC46 INTERCHANGEABLE
Transformer,audio Frequency
Naval Ship Systems Command
5930-00-543-0839721899-120 INTERCHANGEABLE
Switch,sensitive
Raytheon Company Dba Raytheon
2925-00-870-2372 INTERCHANGEABLE
Switch,overspeed Co
2915-00-994-80585428 INTERCHANGEABLE
Parts Kit,pump,cure
Hydro-Aire Aerospace Corp
5970-01-089-3849411435-408 INTERCHANGEABLE
Tape,insulation,electrical
Raytheon Company Dba Raytheon
5940-01-188-81100N314108-1 INTERCHANGEABLE
Lug
National Security Agency
2530-01-216-3231BD60468 INTERCHANGEABLE
Rotor,disc Brake
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5330-01-223-48045-428 INTERCHANGEABLE
Packing,preformed
Bird Electronic Corporation Div Bird Electronic Corp
5120-01-400-0282 INTERCHANGEABLE
Socket,socket Wrench
6035-01-557-6922 INTERCHANGEABLE
Illuminator,fiber Optic
Cross-Reference Index
Part NumberManufacturer
GGG-W-646 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-W-646 TY1CL1STBFMASZ1.250 General Services Administration Federal Supply Service (USA)
5428 Granco Industries Inc (USA)
5428 Wta Tool Llc (USA)
Related Parts
5950-00-033-5667INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
9000S6502-74060REV1PC46
5930-00-543-0839INTERCHANGEABLE
SWITCH,SENSITIVE
721899-120
2925-00-870-2372INTERCHANGEABLE
SWITCH,OVERSPEED CO
2915-00-994-8058INTERCHANGEABLE
PARTS KIT,PUMP,CURE
5428
5970-01-089-3849INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
411435-408
5940-01-188-8110INTERCHANGEABLE
LUG
0N314108-1
2530-01-216-3231INTERCHANGEABLE
ROTOR,DISC BRAKE
BD60468
5330-01-223-4804INTERCHANGEABLE
PACKING,PREFORMED
5-428
5120-01-400-0282INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6035-01-557-6922INTERCHANGEABLE
ILLUMINATOR,FIBER OPTIC

Frequently Asked Questions

What is NSN 5120-00-222-7980?

NSN 5120-00-222-7980 is a Head,crowfoot Socket Wrench, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-222-7980?

NSN 5120-00-222-7980 has 4 cross-referenced part numbers: GGG-W-646 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-W-646 TY1CL1STBFMASZ1.250 (General Services Administration Federal Supply Service), 5428 (Granco Industries Inc), 5428 (Wta Tool Llc).

What NSN replaces 5120-00-222-7980?

There are 10 known substitutes for 5120-00-222-7980: 5950-00-033-5667, 5930-00-543-0839, 2925-00-870-2372 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-W-646?

Key specifications for GGG-W-646: Overall Width: 2.807 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE AND A FORM AND 1.250 SIZE; Drive End Shape: SQUARE SINGLE END INTERNAL; Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL. 11 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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