PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38-017Socket,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-579-0921 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-579-0921 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-579-0921. Primary manufacturer part number: 38-017.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Outside Diameter: 23.5 MILLIMETERS NOMINAL MM
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL
  • Wrenching End Opening Depth: 13.6 MILLIMETERS NOMINAL MM
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-579-0921, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-579-0921
Primary Part Number38-017
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
Drive End Outside Diameter23.5 MILLIMETERS NOMINAL MM
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Wrenching End Opening Depth13.6 MILLIMETERS NOMINAL MM
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Wrenching Surface Size17.0 MILLIMETERS NOMINAL SINGLE END MM
Wrenching End Outside Diameter23.5 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-203-599938017 INTERCHANGEABLE
Switch Subassembly
Switchcraft Inc.
5110-00-268-28975110-00-268-2897 INTERCHANGEABLE
File,hand
General Services Administration Federal Supply Service
5930-00-450-538638017 INTERCHANGEABLE
Switch,thermostatic
A. O. Smith Corporation Dba a O Smith Corp
2530-01-291-5779 INTERCHANGEABLE
Cylinder Assembly,actuating,line
3040-01-567-227838017-100 INTERCHANGEABLE
Hydrauliczcylinderz
Hydraulics International, Inc. Dba Hydraulics International Inc
Cross-Reference Index
Part NumberManufacturer
38-017 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
38-017 Apex Tool Group, Llc Dba Nicholson (USA)
38-017 Armstrong Bros Tool Co (USA)
Related Parts
5930-00-203-5999INTERCHANGEABLE
SWITCH SUBASSEMBLY
38017
5110-00-268-2897INTERCHANGEABLE
FILE,HAND
5110-00-268-2897
5930-00-450-5386INTERCHANGEABLE
SWITCH,THERMOSTATIC
38017
2530-01-291-5779INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
3040-01-567-2278INTERCHANGEABLE
HYDRAULICZCYLINDERZ
38017-100

Frequently Asked Questions

What is NSN 5120-01-579-0921?

NSN 5120-01-579-0921 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 5120-01-579-0921?

NSN 5120-01-579-0921 has 3 cross-referenced part numbers: 38-017 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 38-017 (Apex Tool Group, Llc Dba Nicholson), 38-017 (Armstrong Bros Tool Co).

What NSN replaces 5120-01-579-0921?

There are 5 known substitutes for 5120-01-579-0921: 5930-00-203-5999, 5110-00-268-2897, 5930-00-450-5386 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38-017?

Key specifications for 38-017: Drive End Outside Diameter: 23.5 MILLIMETERS NOMINAL MM; Overall Length: 25.7 MILLIMETERS NOMINAL MM; Drive End Shape: SQUARE SINGLE END INTERNAL; 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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