PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38-122Socket,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-581-0825 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-581-0825 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-581-0825. Primary manufacturer part number: 38-122.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 29.9 MILLIMETERS NOMINAL MM
  • Drive End Outside Diameter: 29.6 MILLIMETERS NOMINAL MM
  • Style Designator: INTERNAL-INTERNAL
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching End Opening Depth: 16.4 MILLIMETERS NOMINAL MM
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-581-0825, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.. Government technical data includes 11 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
NSN5120-01-581-0825
Primary Part Number38-122
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEasco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.
StatusACTIVE
Wrenching End Outside Diameter29.9 MILLIMETERS NOMINAL MM
Drive End Outside Diameter29.6 MILLIMETERS NOMINAL MM
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching End Opening Depth16.4 MILLIMETERS NOMINAL MM
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size22.0 MILLIMETERS NOMINAL SINGLE END MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5307-01-074-692838104 INTERCHANGEABLE
Stud,plain
Jergens Inc Div Tooling Components Division
4730-01-571-0569520-13550-2 INTERCHANGEABLE
Adapter,straight,flange to Flang
The Boeing Company Div Defense
1560-01-724-760938122 INTERCHANGEABLE
Support,structural Component,air
Avtechtyee Inc Dba Avtech
Cross-Reference Index
Part NumberManufacturer
38-122 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
38-122 Armstrong Bros Tool Co (USA)
38-122 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5307-01-074-6928INTERCHANGEABLE
STUD,PLAIN
38104
4730-01-571-0569INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO FLANG
520-13550-2
1560-01-724-7609INTERCHANGEABLE
SUPPORT,STRUCTURAL COMPONENT,AIR
38122

Frequently Asked Questions

What is NSN 5120-01-581-0825?

NSN 5120-01-581-0825 is a Socket,socket Wrench, manufactured by Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc., classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-581-0825?

NSN 5120-01-581-0825 has 3 cross-referenced part numbers: 38-122 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 38-122 (Armstrong Bros Tool Co), 38-122 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-581-0825?

There are 3 known substitutes for 5120-01-581-0825: 5307-01-074-6928, 4730-01-571-0569, 1560-01-724-7609. Verify interchangeability with system specifications before substitution.

What are the specifications of 38-122?

Key specifications for 38-122: Wrenching End Outside Diameter: 29.9 MILLIMETERS NOMINAL MM; Drive End Outside Diameter: 29.6 MILLIMETERS NOMINAL MM; Overall Length: 31.8 MILLIMETERS NOMINAL MM; Style Designator: INTERNAL-INTERNAL. 12 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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