PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-346Socket,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-579-1017 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-579-1017 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-579-1017. Primary manufacturer part number: 12-346.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 1.938 INCHES NOMINAL IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Size: 1.438 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Style Designator: INTERNAL-INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-579-1017, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-579-1017
Primary Part Number12-346
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 Diameter1.938 INCHES NOMINAL IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size1.438 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Wrenching End Opening Depth1.125 INCHES NOMINAL IN
Drive End Outside Diameter1.938 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5920-00-212-705312346 INTERCHANGEABLE
Shield,corona
Dayton-Granger, Inc.
5325-00-415-275512346 INTERCHANGEABLE
Insert,screw Thread
Arvinmeritor Inc
6625-00-772-6115 INTERCHANGEABLE
Gear and Shaft Asse
3455-01-046-035054042 INTERCHANGEABLE
Cutter,milling,end
Precision Twist Drill Co
5895-01-488-930712346 INTERCHANGEABLE
Switch,electronic
Ap Labs, Inc.
4730-01-559-3054 INTERCHANGEABLE
Cap,pipe
Cross-Reference Index
Part NumberManufacturer
12-346 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
12-346 Armstrong Bros Tool Co (USA)
12-346 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5920-00-212-7053INTERCHANGEABLE
SHIELD,CORONA
12346
5325-00-415-2755INTERCHANGEABLE
INSERT,SCREW THREAD
12346
6625-00-772-6115INTERCHANGEABLE
GEAR AND SHAFT ASSE
3455-01-046-0350INTERCHANGEABLE
CUTTER,MILLING,END
54042
5895-01-488-9307INTERCHANGEABLE
SWITCH,ELECTRONIC
12346
4730-01-559-3054INTERCHANGEABLE
CAP,PIPE

Frequently Asked Questions

What is NSN 5120-01-579-1017?

NSN 5120-01-579-1017 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 5120-01-579-1017?

NSN 5120-01-579-1017 has 3 cross-referenced part numbers: 12-346 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 12-346 (Armstrong Bros Tool Co), 12-346 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-579-1017?

There are 6 known substitutes for 5120-01-579-1017: 5920-00-212-7053, 5325-00-415-2755, 6625-00-772-6115 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-346?

Key specifications for 12-346: Wrenching End Outside Diameter: 1.938 INCHES NOMINAL IN; Overall Length: 3.218 INCHES NOMINAL IN; Drive End Shape: SQUARE SINGLE END INTERNAL; Wrenching Surface Size: 1.438 INCHES NOMINAL SINGLE END IN. 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