PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39-018Socket,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-579-0997 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-579-0997 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-579-0997. Primary manufacturer part number: 39-018.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 25.5 MILLIMETERS NOMINAL MM
  • Drive End Outside Diameter: 25.5 MILLIMETERS NOMINAL MM
  • Wrenching End Opening Depth: 11.4 MILLIMETERS NOMINAL MM
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-579-0997, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-579-0997
Primary Part Number39-018
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 Diameter25.5 MILLIMETERS NOMINAL MM
Drive End Outside Diameter25.5 MILLIMETERS NOMINAL MM
Wrenching End Opening Depth11.4 MILLIMETERS NOMINAL MM
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size18.0 MILLIMETERS NOMINAL SINGLE END MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5120-00-242-5966 INTERCHANGEABLE
Punch,drive Pin
5330-00-602-615239018 INTERCHANGEABLE
Gasket
Northrop Grumman Systems Corporation
6520-01-003-227314760 INTERCHANGEABLE
Bur,dental,excavating
Ss White Burs Llc
3455-01-412-747639018 INTERCHANGEABLE
Cutter,milling,end
Doall Baltimore Company
Cross-Reference Index
Part NumberManufacturer
39-018 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
39-018 Apex Tool Group, Llc Dba Nicholson (USA)
39-018 Armstrong Bros Tool Co (USA)
Related Parts
5120-00-242-5966INTERCHANGEABLE
PUNCH,DRIVE PIN
5330-00-602-6152INTERCHANGEABLE
GASKET
39018
6520-01-003-2273INTERCHANGEABLE
BUR,DENTAL,EXCAVATING
14760
3455-01-412-7476INTERCHANGEABLE
CUTTER,MILLING,END
39018

Frequently Asked Questions

What is NSN 5120-01-579-0997?

NSN 5120-01-579-0997 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 5120-01-579-0997?

NSN 5120-01-579-0997 has 3 cross-referenced part numbers: 39-018 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 39-018 (Apex Tool Group, Llc Dba Nicholson), 39-018 (Armstrong Bros Tool Co).

What NSN replaces 5120-01-579-0997?

There are 4 known substitutes for 5120-01-579-0997: 5120-00-242-5966, 5330-00-602-6152, 6520-01-003-2273 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39-018?

Key specifications for 39-018: Wrenching End Outside Diameter: 25.5 MILLIMETERS NOMINAL MM; Drive End Outside Diameter: 25.5 MILLIMETERS NOMINAL MM; Wrenching End Opening Depth: 11.4 MILLIMETERS NOMINAL MM; Overall Length: 37.0 MILLIMETERS NOMINAL MM. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com