PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5543A42Socket,socket Wrench

Mcmaster-Carr Supply Co · NSN 5120-01-335-0962 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-0962 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-0962. Primary manufacturer part number: 5543A42.
Features
  • Socket,socket Wrench — FSC 5120
  • Style Designator: INTERNAL-INTERNAL
  • Wrenching Surface Size: 0.156 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
  • Specification/standard Data: 05047-ASME B107.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-335-0962, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 10 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-335-0962
Primary Part Number5543A42
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusCANCELLED
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Size0.156 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Specification/standard Data05047-ASME B107.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5120-00-962-8343 INTERCHANGEABLE
Socket,socket Wrench
9330-01-458-5848TM-05 INTERCHANGEABLE
Plastic Sheet
Innovative Plastics Inc
Cross-Reference Index
Part NumberManufacturer
5543A42 Mcmaster-Carr Supply Co (USA)
B107.1 The American Society of Mechanical Engineers (USA)
B107.1 TY1CL1 General Services Administration Federal Supply Service (USA)
TM05 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5120-00-962-8343INTERCHANGEABLE
SOCKET,SOCKET WRENCH
9330-01-458-5848INTERCHANGEABLE
PLASTIC SHEET
TM-05

Frequently Asked Questions

What is NSN 5120-01-335-0962?

NSN 5120-01-335-0962 is a Socket,socket Wrench, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-335-0962?

NSN 5120-01-335-0962 has 4 cross-referenced part numbers: 5543A42 (Mcmaster-Carr Supply Co), B107.1 (The American Society of Mechanical Engineers), B107.1 TY1CL1 (General Services Administration Federal Supply Service), TM05 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).

What NSN replaces 5120-01-335-0962?

There are 2 known substitutes for 5120-01-335-0962: 5120-00-962-8343, 9330-01-458-5848. Verify interchangeability with system specifications before substitution.

What are the specifications of 5543A42?

Key specifications for 5543A42: Style Designator: INTERNAL-INTERNAL; Wrenching Surface Size: 0.156 INCHES NOMINAL SINGLE END IN; Surface Treatment: CHROMIUM OVERALL; Drive End Shape: SQUARE SINGLE END INTERNAL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-335-0962 still in active supply?

NSN 5120-01-335-0962 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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