PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26-166Wrench,open End

Henchman Products Pty Ltd · NSN 5120-01-658-2452 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-658-2452 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-658-2452. Primary manufacturer part number: 26-166.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Thickness: 0.421 INCHES NOMINAL IN
  • Large End Head Thickness: 0.421 INCHES NOMINAL IN
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 1.062 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Size: 1.125 INCHES NOMINAL SECOND END IN
  • 3 verified cross-references
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Wrench,open End, cataloged under National Stock Number 5120-01-658-2452, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Henchman Products Pty Ltd. Government technical data includes 6 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-658-2452
Primary Part Number26-166
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerHenchman Products Pty Ltd
StatusACTIVE
Small End Head Thickness0.421 INCHES NOMINAL IN
Large End Head Thickness0.421 INCHES NOMINAL IN
Large End Head Angle15.0 DEGREES NOMINAL
Small End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size1.062 INCHES NOMINAL FIRST END IN
Wrenching Surface Size1.125 INCHES NOMINAL SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-100-05892606249 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Boeing Company Div Defense
6615-00-124-438626166 INTERCHANGEABLE
Piston,lock,servocy
Parker-Hannifin Corporation Dba Control Systems Division
3040-00-724-9619 INTERCHANGEABLE
Hub,body
5915-00-833-3882C680362-1 INTERCHANGEABLE
Filter,band Pass
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
26-166 Henchman Products Pty Ltd (AUS)
26-166 Apex Tool Group, Llc Dba Nicholson (USA)
26-166 Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
Related Parts
3110-00-100-0589INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2606249
6615-00-124-4386INTERCHANGEABLE
PISTON,LOCK,SERVOCY
26166
3040-00-724-9619INTERCHANGEABLE
HUB,BODY
5915-00-833-3882INTERCHANGEABLE
FILTER,BAND PASS
C680362-1

Frequently Asked Questions

What is NSN 5120-01-658-2452?

NSN 5120-01-658-2452 is a Wrench,open End, manufactured by Henchman Products Pty Ltd, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-658-2452?

NSN 5120-01-658-2452 has 3 cross-referenced part numbers: 26-166 (Henchman Products Pty Ltd), 26-166 (Apex Tool Group, Llc Dba Nicholson), 26-166 (Henchman Group Pty Ltd the Trustee for Henchman Unit Trust).

What NSN replaces 5120-01-658-2452?

There are 4 known substitutes for 5120-01-658-2452: 3110-00-100-0589, 6615-00-124-4386, 3040-00-724-9619 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26-166?

Key specifications for 26-166: Small End Head Thickness: 0.421 INCHES NOMINAL IN; Overall Length: 13.000 INCHES NOMINAL IN; Large End Head Thickness: 0.421 INCHES NOMINAL IN; Large End Head Angle: 15.0 DEGREES NOMINAL. 7 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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