PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TM61AExtension,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-335-1075 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-1075 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-1075. Primary manufacturer part number: TM61A.
Features
  • Extension,socket Wrench — FSC 5120
  • Style Designator: FLEXIBLE
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS AND B STYLE
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Drive End Shape: SQUARE SECOND END EXTERNAL
  • Specification/standard Data: 05047-ASME B107.10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive End Shape: SQUARE FIRST END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-335-1075, 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 9 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-335-1075
Primary Part NumberTM61A
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Style DesignatorFLEXIBLE
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS AND B STYLE
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Drive End ShapeSQUARE SECOND END EXTERNAL
Specification/standard Data05047-ASME B107.10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End ShapeSQUARE FIRST END INTERNAL
Drive Surface Size0.250 INCHES NOMINAL BOTH ENDS IN
Features ProvidedMANUAL TOOL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5120-00-022-9797 INTERCHANGEABLE
Extension,socket Wrench
5120-00-240-1532 INTERCHANGEABLE
Extension,socket Wrench
5120-01-021-2683 INTERCHANGEABLE
Extension,socket Wrench
2520-01-269-4788TM61 INTERCHANGEABLE
Modulator,transmission
Ford Motor Craft
5120-01-398-7708 INTERCHANGEABLE
Extension,socket Wrench
5120-01-399-9526 INTERCHANGEABLE
Extension,socket Wrench
Cross-Reference Index
Part NumberManufacturer
TM61A PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
4492861266 Lemvigh-Muller A/s (DNK)
B107.10 TY2CL2STB General Services Administration Federal Supply Service (USA)
B107.10 The American Society of Mechanical Engineers (USA)
TM61 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5120-00-022-9797INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-240-1532INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-01-021-2683INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
2520-01-269-4788INTERCHANGEABLE
MODULATOR,TRANSMISSION
TM61
5120-01-398-7708INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-01-399-9526INTERCHANGEABLE
EXTENSION,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-01-335-1075?

NSN 5120-01-335-1075 is a Extension,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 5120-01-335-1075?

NSN 5120-01-335-1075 has 5 cross-referenced part numbers: TM61A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 4492861266 (Lemvigh-Muller A/s), B107.10 TY2CL2STB (General Services Administration Federal Supply Service), B107.10 (The American Society of Mechanical Engineers), TM61 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).

What NSN replaces 5120-01-335-1075?

There are 6 known substitutes for 5120-01-335-1075: 5120-00-022-9797, 5120-00-240-1532, 5120-01-021-2683 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TM61A?

Key specifications for TM61A: Overall Length: 6.000 INCHES NOMINAL IN; Style Designator: FLEXIBLE; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS AND B STYLE; Material: STEEL OVERALL. 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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