PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-318Socket,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-579-1028 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-579-1028 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-579-1028. Primary manufacturer part number: 12-318.
Features
  • Socket,socket Wrench — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Size: 0.563 INCHES NOMINAL SINGLE END IN
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE
  • Features Provided: MANUAL TOOL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-579-1028, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-579-1028
Primary Part Number12-318
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
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size0.563 INCHES NOMINAL SINGLE END IN
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2520-00-096-6921807 74 INTERCHANGEABLE
Axle Assembly,automotive,driving
Am General Llc
4730-00-196-0895 INTERCHANGEABLE
Bushing,pipe
5905-00-201-29501-2318 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Viasys Respiratory Care Inc. Dba Biosys Healthcare
5133-00-228-1385 INTERCHANGEABLE
Drill,twist
3230-00-537-2185 INTERCHANGEABLE
Blade,jig Saw,woodworking
9540-00-853-4991 INTERCHANGEABLE
Angle,structural
4330-00-973-425512318-01-50-0080 INTERCHANGEABLE
Filter,fluid
Solventum Purification Inc. Div Filtration and Separation Division
2540-01-168-6463 INTERCHANGEABLE
Arm,windshield Wiper
6515-01-574-3692J298C INTERCHANGEABLE
Mask,oronasal
Jorgensen Laboratories, Inc. Dba Jorgensen Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
12-318 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
80774 Apex Tool Group, Llc Dba Nicholson (USA)
12-318 Armstrong Bros Tool Co (USA)
AS954 Sae International Dba Sae International (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
12-318 Apex Tool Group, Llc Dba Nicholson (USA)
AS954 Society of Automotive Engineers Inc (USA)
00-243-7348 Replacement NSN of Temporarily Maintained NSN
Related Parts
2520-00-096-6921INTERCHANGEABLE
AXLE ASSEMBLY,AUTOMOTIVE,DRIVING
807 74
4730-00-196-0895INTERCHANGEABLE
BUSHING,PIPE
5905-00-201-2950INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
1-2318
5133-00-228-1385INTERCHANGEABLE
DRILL,TWIST
3230-00-537-2185INTERCHANGEABLE
BLADE,JIG SAW,WOODWORKING
9540-00-853-4991INTERCHANGEABLE
ANGLE,STRUCTURAL
4330-00-973-4255INTERCHANGEABLE
FILTER,FLUID
12318-01-50-0080
2540-01-168-6463INTERCHANGEABLE
ARM,WINDSHIELD WIPER
6515-01-574-3692INTERCHANGEABLE
MASK,ORONASAL
J298C

Frequently Asked Questions

What is NSN 5120-01-579-1028?

NSN 5120-01-579-1028 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 5120-01-579-1028?

NSN 5120-01-579-1028 has 8 cross-referenced part numbers: 12-318 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 80774 (Apex Tool Group, Llc Dba Nicholson), 12-318 (Armstrong Bros Tool Co), AS954 (Sae International Dba Sae International), AS954 TY1CL1STB (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5120-01-579-1028?

There are 9 known substitutes for 5120-01-579-1028: 2520-00-096-6921, 4730-00-196-0895, 5905-00-201-2950 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-318?

Key specifications for 12-318: Overall Length: 2.930 INCHES MINIMUM IN; Surface Treatment: CHROMIUM OVERALL; Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Wrenching Surface Size: 0.563 INCHES NOMINAL SINGLE END IN. 11 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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