PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39-127Socket,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-580-9762 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-580-9762 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-580-9762. Primary manufacturer part number: 39-127.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 35.7 MILLIMETERS NOMINAL MM
  • Wrenching End Opening Depth: 22.9 MILLIMETERS NOMINAL MM
  • Material: STEEL OVERALL
  • Style Designator: INTERNAL-INTERNAL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Size: 27.0 MILLIMETERS NOMINAL SINGLE END MM
  • Drive End Outside Diameter: 35.7 MILLIMETERS NOMINAL MM
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-580-9762, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-580-9762
Primary Part Number39-127
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 Diameter35.7 MILLIMETERS NOMINAL MM
Wrenching End Opening Depth22.9 MILLIMETERS NOMINAL MM
MaterialSTEEL OVERALL
Style DesignatorINTERNAL-INTERNAL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size27.0 MILLIMETERS NOMINAL SINGLE END MM
Drive End Outside Diameter35.7 MILLIMETERS NOMINAL MM
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4520-01-269-461439127 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
5306-01-556-492239127 INTERCHANGEABLE
Bolt,machine
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
39-127 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
39-127 Armstrong Bros Tool Co (USA)
39-127 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
4520-01-269-4614INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
39127
5306-01-556-4922INTERCHANGEABLE
BOLT,MACHINE
39127

Frequently Asked Questions

What is NSN 5120-01-580-9762?

NSN 5120-01-580-9762 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 5120-01-580-9762?

NSN 5120-01-580-9762 has 3 cross-referenced part numbers: 39-127 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 39-127 (Armstrong Bros Tool Co), 39-127 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-580-9762?

There are 2 known substitutes for 5120-01-580-9762: 4520-01-269-4614, 5306-01-556-4922. Verify interchangeability with system specifications before substitution.

What are the specifications of 39-127?

Key specifications for 39-127: Wrenching End Outside Diameter: 35.7 MILLIMETERS NOMINAL MM; Wrenching End Opening Depth: 22.9 MILLIMETERS NOMINAL MM; Overall Length: 41.0 MILLIMETERS NOMINAL MM; Material: STEEL OVERALL. 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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