PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TM4ASBHandle,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-00-177-7261 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-177-7261 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-177-7261. Primary manufacturer part number: TM4ASB.
Features
  • Handle,socket Wrench — FSC 5120
  • Nondefinitive Spec/std Data: 3 TYPE AND 3 CLASS AND B STYLE
  • Drive End Shape: SQUARE FIRST END EXTERNAL
  • Drive Surface Size: 0.250 INCHES NOMINAL BOTH ENDS IN
  • Style Designator: SPIN RIGID
  • Material: IRON AND STEEL OVERALL
  • Surface Treatment: CHROMIUM AND NICKEL AND OXIDE OVERALL
  • Drive End Shape: SQUARE SECOND END INTERNAL
Applications
  • Applications requiring Iron and Steel Overall construction
General Description

The Handle,socket Wrench, cataloged under National Stock Number 5120-00-177-7261, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-177-7261
Primary Part NumberTM4ASB
Item NameHandle,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Nondefinitive Spec/std Data3 TYPE AND 3 CLASS AND B STYLE
Drive End ShapeSQUARE FIRST END EXTERNAL
Drive Surface Size0.250 INCHES NOMINAL BOTH ENDS IN
Style DesignatorSPIN RIGID
MaterialIRON AND STEEL OVERALL
Surface TreatmentCHROMIUM AND NICKEL AND OXIDE OVERALL
Drive End ShapeSQUARE SECOND END INTERNAL
Departure From Cited DesignatorAS MOD BY O/A LG AND SPECIAL FEATURE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5120-00-242-3256 INTERCHANGEABLE
Handle,socket Wrench
5120-00-288-6514 INTERCHANGEABLE
Handle,socket Wrench
5120-00-786-3783 INTERCHANGEABLE
Handle,socket Wrench
Cross-Reference Index
Part NumberManufacturer
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-W-641 TY3CL3STB General Services Administration Federal Supply Service (USA)
TM4ASB PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5120-00-242-3256INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5120-00-288-6514INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5120-00-786-3783INTERCHANGEABLE
HANDLE,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-177-7261?

NSN 5120-00-177-7261 is a Handle,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-177-7261?

NSN 5120-00-177-7261 has 3 cross-referenced part numbers: GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-W-641 TY3CL3STB (General Services Administration Federal Supply Service), TM4ASB (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).

What NSN replaces 5120-00-177-7261?

There are 3 known substitutes for 5120-00-177-7261: 5120-00-242-3256, 5120-00-288-6514, 5120-00-786-3783. Verify interchangeability with system specifications before substitution.

What are the specifications of TM4ASB?

Key specifications for TM4ASB: Overall Length: 5.750 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 3 TYPE AND 3 CLASS AND B STYLE; Special Features: W/TWO 3/16 IN. HEX BLADE ATTACHMENTS-ONE 6 IN. LG AND ONE 9 IN. LG IN; Drive End Shape: SQUARE FIRST END EXTERNAL. 10 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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