PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-348Socket,socket Wrench

Armstrong Bros Tool Co · NSN 5120-01-579-1014 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-579-1014 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-579-1014. Primary manufacturer part number: 12-348.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Outside Diameter: 2.000 INCHES NOMINAL IN
  • Wrenching End Outside Diameter: 2.000 INCHES NOMINAL IN
  • Wrenching Surface Size: 1.500 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching End Opening Depth: 1.125 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-579-1014, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Armstrong Bros Tool Co. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-579-1014
Primary Part Number12-348
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerArmstrong Bros Tool Co
StatusACTIVE
Drive End Outside Diameter2.000 INCHES NOMINAL IN
Wrenching End Outside Diameter2.000 INCHES NOMINAL IN
Wrenching Surface Size1.500 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching End Opening Depth1.125 INCHES NOMINAL IN
Features ProvidedMANUAL TOOL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-259-5315 INTERCHANGEABLE
Connector,receptacle,electrical
5950-00-450-811027-10359-1 INTERCHANGEABLE
Transformer,power
The Boeing Company Div Defense
5975-00-606-546012348 INTERCHANGEABLE
Antenna Guy Fitting
Dayton-Granger, Inc.
5306-00-909-43690095314 INTERCHANGEABLE
Bolt,machine
Chrysler Realty Company Llc Dba Daimler Chrysler
3930-00-937-354712348 INTERCHANGEABLE
Chain
Paccar Winch Inc Dba Paccar Winch Division
5999-01-122-4930 INTERCHANGEABLE
Heat Sink,electrical-Electronic
4820-01-132-029112348 INTERCHANGEABLE
Plate,diaphragm,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
2930-01-353-8554171496 INTERCHANGEABLE
Core,radiator
Wiggins Lift Co Inc
5340-01-359-992412348 INTERCHANGEABLE
Clamp,loop
Elbitamerica, Inc.
6530-01-502-755112348 INTERCHANGEABLE
Pouch,sterilization
Advanced Sterilization Products Services Inc.
Cross-Reference Index
Part NumberManufacturer
12-348 Armstrong Bros Tool Co (USA)
12-348 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
12-348 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5935-00-259-5315INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5950-00-450-8110INTERCHANGEABLE
TRANSFORMER,POWER
27-10359-1
5975-00-606-5460INTERCHANGEABLE
ANTENNA GUY FITTING
12348
5306-00-909-4369INTERCHANGEABLE
BOLT,MACHINE
0095314
3930-00-937-3547INTERCHANGEABLE
CHAIN
12348
5999-01-122-4930INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
4820-01-132-0291INTERCHANGEABLE
PLATE,DIAPHRAGM,VALVE
12348
2930-01-353-8554INTERCHANGEABLE
CORE,RADIATOR
171496
5340-01-359-9924INTERCHANGEABLE
CLAMP,LOOP
12348
6530-01-502-7551INTERCHANGEABLE
POUCH,STERILIZATION
12348
6525-01-574-7275INTERCHANGEABLE
CABLE,USB,COMPUTED RADIOGRAPHY
900-0168-04
4520-01-608-7949INTERCHANGEABLE
PARTS KIT,SPACE HEATER
8270K21

Frequently Asked Questions

What is NSN 5120-01-579-1014?

NSN 5120-01-579-1014 is a Socket,socket Wrench, manufactured by Armstrong Bros Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-579-1014?

NSN 5120-01-579-1014 has 3 cross-referenced part numbers: 12-348 (Armstrong Bros Tool Co), 12-348 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 12-348 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-579-1014?

There are 12 known substitutes for 5120-01-579-1014: 5935-00-259-5315, 5950-00-450-8110, 5975-00-606-5460 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-348?

Key specifications for 12-348: Drive End Outside Diameter: 2.000 INCHES NOMINAL IN; Wrenching End Outside Diameter: 2.000 INCHES NOMINAL IN; Overall Length: 3.218 INCHES NOMINAL IN; Wrenching Surface Size: 1.500 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.
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