PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-12MMWrench,box and Open End,combinat

Wright Tool Company, Llc · NSN 5120-01-349-1478 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-349-1478 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-349-1478. Primary manufacturer part number: 12-12MM.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Style Designator: OFFSET
  • Wrenching Surface Shape: OVAL FIRST END INTERNAL
  • Wrenching Surface Size: 12.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND C STYLE
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Head Angle: 15.0 DEGREES NOMINAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-349-1478, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Wright Tool Company, Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-349-1478
Primary Part Number12-12MM
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWright Tool Company, Llc
StatusCANCELLED
Style DesignatorOFFSET
Wrenching Surface ShapeOVAL FIRST END INTERNAL
Wrenching Surface Size12.0 MILLIMETERS NOMINAL BOTH ENDS MM
Nondefinitive Spec/std Data2 TYPE AND 4 CLASS AND C STYLE
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Head Angle15.0 DEGREES NOMINAL
Surface TreatmentCHROMIUM OVERALL
MaterialSTEEL OVERALL
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5330-00-052-3051 INTERCHANGEABLE
Gasket
5320-00-205-7469205-202 1-2 INTERCHANGEABLE
Rivet,solid
Honeywell Intl Inc Defense Avionics Systems
5945-00-232-774320-512 INTERCHANGEABLE
Relay,electromagnetic
Entron Industries Limited Partnership Dba Entron Industries Property Div
5999-00-626-4431 INTERCHANGEABLE
Clip,electrical
5940-00-820-454910-702-B-05 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
4820-00-922-008920512 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Fairchild Industrial Products Company
6515-01-153-5787 INTERCHANGEABLE
Mixer,cement,bone
1650-01-183-021320512 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Real-Time Laboratories, Llc
2910-01-188-368320512 INTERCHANGEABLE
Blade,transfer Pump
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6350-01-695-153020512 INTERCHANGEABLE
Detector,heat
Aqualarm Inc
Cross-Reference Index
Part NumberManufacturer
12-12MM Wright Tool Company, Llc (USA)
AS955 TY3CL1STC General Services Administration Federal Supply Service (USA)
B107.6 TY1 General Services Administration Federal Supply Service (USA)
OEXM120B Snap on Uk Holdings Ltd T/a Snap on Tools (GBR)
205-12 Elora-Werkzeugfabrik Gmbh (DEU)
AS954 TY2CL4STC General Services Administration Federal Supply Service (USA)
OEXM120B Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS955 Sae International Dba Sae International (USA)
AS955 Society of Automotive Engineers Inc (USA)
OEXM120A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 Sae International Dba Sae International (USA)
B107.6 The American Society of Mechanical Engineers (USA)
B107.100 The American Society of Mechanical Engineers (USA)
Related Parts
5330-00-052-3051INTERCHANGEABLE
GASKET
5320-00-205-7469INTERCHANGEABLE
RIVET,SOLID
205-202 1-2
5945-00-232-7743INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
20-512
5999-00-626-4431INTERCHANGEABLE
CLIP,ELECTRICAL
5940-00-820-4549INTERCHANGEABLE
TERMINAL,STUD
10-702-B-05
4820-00-922-0089INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
20512
6515-01-153-5787INTERCHANGEABLE
MIXER,CEMENT,BONE
1650-01-183-0213INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
20512
2910-01-188-3683INTERCHANGEABLE
BLADE,TRANSFER PUMP
20512
6350-01-695-1530INTERCHANGEABLE
DETECTOR,HEAT
20512

Frequently Asked Questions

What is NSN 5120-01-349-1478?

NSN 5120-01-349-1478 is a Wrench,box and Open End,combinat, manufactured by Wright Tool Company, Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-349-1478?

NSN 5120-01-349-1478 has 13 cross-referenced part numbers: 12-12MM (Wright Tool Company, Llc), AS955 TY3CL1STC (General Services Administration Federal Supply Service), B107.6 TY1 (General Services Administration Federal Supply Service), OEXM120B (Snap on Uk Holdings Ltd T/a Snap on Tools), 205-12 (Elora-Werkzeugfabrik Gmbh) and 8 more.

What NSN replaces 5120-01-349-1478?

There are 10 known substitutes for 5120-01-349-1478: 5330-00-052-3051, 5320-00-205-7469, 5945-00-232-7743 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-12MM?

Key specifications for 12-12MM: Overall Length: 167.0 MILLIMETERS MINIMUM AND 197.0 MILLIMETERS MAXIMUM MM; Style Designator: OFFSET; Wrenching Surface Shape: OVAL FIRST END INTERNAL; Wrenching Surface Size: 12.0 MILLIMETERS NOMINAL BOTH ENDS MM. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-349-1478 still in active supply?

NSN 5120-01-349-1478 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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