PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39-010Socket,socket Wrench

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-579-0919 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-579-0919 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-579-0919. Primary manufacturer part number: 39-010.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Outside Diameter: 21.8 MILLIMETERS NOMINAL MM
  • Wrenching End Outside Diameter: 15.9 MILLIMETERS NOMINAL MM
  • Wrenching End Opening Depth: 10.2 MILLIMETERS NOMINAL MM
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 10.0 MILLIMETERS NOMINAL SINGLE END MM
  • Style Designator: INTERNAL-INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-579-0919, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. 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
NSN5120-01-579-0919
Primary Part Number39-010
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
Drive End Outside Diameter21.8 MILLIMETERS NOMINAL MM
Wrenching End Outside Diameter15.9 MILLIMETERS NOMINAL MM
Wrenching End Opening Depth10.2 MILLIMETERS NOMINAL MM
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size10.0 MILLIMETERS NOMINAL SINGLE END MM
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5999-00-035-8703 INTERCHANGEABLE
Contact,electrical
5340-00-388-689039010 INTERCHANGEABLE
Seat,helical Compression Spring
Northrop Grumman Systems Corporation Div Marine Systems
2520-00-737-823339010 INTERCHANGEABLE
Transmission Asy
New Venture Gear Inc New Process Gear Div
6625-01-073-6830 INTERCHANGEABLE
Case Drawer,transportation
6810-01-385-817339010 INTERCHANGEABLE
Zinc Chloride Solution
Onox Inc
Cross-Reference Index
Part NumberManufacturer
39-010 Apex Tool Group, Llc Dba Nicholson (USA)
39-010 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
39-010 Armstrong Bros Tool Co (USA)
Related Parts
5999-00-035-8703INTERCHANGEABLE
CONTACT,ELECTRICAL
5340-00-388-6890INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
39010
2520-00-737-8233INTERCHANGEABLE
TRANSMISSION ASY
39010
6625-01-073-6830INTERCHANGEABLE
CASE DRAWER,TRANSPORTATION
6810-01-385-8173INTERCHANGEABLE
ZINC CHLORIDE SOLUTION
39010

Frequently Asked Questions

What is NSN 5120-01-579-0919?

NSN 5120-01-579-0919 is a Socket,socket Wrench, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-579-0919?

NSN 5120-01-579-0919 has 3 cross-referenced part numbers: 39-010 (Apex Tool Group, Llc Dba Nicholson), 39-010 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 39-010 (Armstrong Bros Tool Co).

What NSN replaces 5120-01-579-0919?

There are 5 known substitutes for 5120-01-579-0919: 5999-00-035-8703, 5340-00-388-6890, 2520-00-737-8233 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39-010?

Key specifications for 39-010: Overall Length: 37.0 MILLIMETERS NOMINAL MM; Drive End Outside Diameter: 21.8 MILLIMETERS NOMINAL MM; Wrenching End Outside Diameter: 15.9 MILLIMETERS NOMINAL MM; Wrenching End Opening Depth: 10.2 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.
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