PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1246MWrench,box and Open End,combinat

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-8830 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-8830 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-8830. Primary manufacturer part number: 1246M.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Style Designator: OFFSET
  • Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND D STYLE
  • Head Angle: 15.0 DEGREES NOMINAL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-399-8830, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-8830
Primary Part Number1246M
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Surface TreatmentCHROMIUM OVERALL
Style DesignatorOFFSET
Nondefinitive Spec/std Data2 TYPE AND 4 CLASS AND D STYLE
Head Angle15.0 DEGREES NOMINAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Wrenching Surface ShapeOVAL FIRST END INTERNAL
Wrenching Surface Size46.0 MILLIMETERS NOMINAL BOTH ENDS MM
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3120-00-339-5642BM27253 INTERCHANGEABLE
Bearing Set,sleeve
Cummins Inc.
7320-00-390-1446MC46 INTERCHANGEABLE
Cam Follower,timing
Insinger Machine Co
5120-01-335-1243 INTERCHANGEABLE
Wrench,box and Open End,combinat
5120-01-335-1245JHW-11218 INTERCHANGEABLE
Wrench,box and Open End,combinat
Williams J H Industrial Products Inc
5120-01-335-1246 INTERCHANGEABLE
Wrench,box and Open End,combinat
5120-01-335-1247 INTERCHANGEABLE
Wrench,box and Open End,combinat
5120-01-335-1249 INTERCHANGEABLE
Wrench,box and Open End,combinat
5120-01-335-1250 INTERCHANGEABLE
Wrench,box and Open End,combinat
5120-01-335-1251 INTERCHANGEABLE
Wrench,box and Open End,combinat
5120-01-335-1252 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
1246M The Stanley Works Dba Stanley Proto (USA)
AS954 Sae International Dba Sae International (USA)
AS955 Sae International Dba Sae International (USA)
AS954 TY2CL4STD General Services Administration Federal Supply Service (USA)
J1246M The Stanley Works Dba Stanley Proto (USA)
MC46 Gray Hand Tool Sales Ltd (CAN)
AS955 TY3CL1STD General Services Administration Federal Supply Service (USA)
1ALP8 W.w. Grainger, Inc. Div Government Sales Division (USA)
AS955 Society of Automotive Engineers Inc (USA)
Related Parts
3120-00-339-5642INTERCHANGEABLE
BEARING SET,SLEEVE
BM27253
7320-00-390-1446INTERCHANGEABLE
CAM FOLLOWER,TIMING
MC46
5120-01-335-1243INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-335-1245INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
JHW-11218
5120-01-335-1246INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-335-1247INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-335-1249INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-335-1250INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-335-1251INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-335-1252INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-367-3372INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5120-01-367-3374INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 5120-01-399-8830?

NSN 5120-01-399-8830 is a Wrench,box and Open End,combinat, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-8830?

NSN 5120-01-399-8830 has 9 cross-referenced part numbers: 1246M (The Stanley Works Dba Stanley Proto), AS954 (Sae International Dba Sae International), AS955 (Sae International Dba Sae International), AS954 TY2CL4STD (General Services Administration Federal Supply Service), J1246M (The Stanley Works Dba Stanley Proto) and 4 more.

What NSN replaces 5120-01-399-8830?

There are 12 known substitutes for 5120-01-399-8830: 3120-00-339-5642, 7320-00-390-1446, 5120-01-335-1243 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1246M?

Key specifications for 1246M: Surface Treatment: CHROMIUM OVERALL; Style Designator: OFFSET; Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND D STYLE; Head Angle: 15.0 DEGREES NOMINAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-8830 still in active supply?

NSN 5120-01-399-8830 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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