PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5418MSocket,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9637 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9637 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9637. Primary manufacturer part number: J5418M.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Features Provided: MANUAL TOOL
  • Surface Treatment: CHROMIUM OVERALL
  • Style Designator: INTERNAL-INTERNAL
  • Wrenching Surface Size: 18.0 MILLIMETERS NOMINAL SINGLE END MM
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9637, 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 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-9637
Primary Part NumberJ5418M
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedMANUAL TOOL
Surface TreatmentCHROMIUM OVERALL
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Size18.0 MILLIMETERS NOMINAL SINGLE END MM
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-156-7980 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
AS955 TY1CL1STA General Services Administration Federal Supply Service (USA)
AS955 Sae International Dba Sae International (USA)
AS954 Sae International Dba Sae International (USA)
5418M The Stanley Works Dba Stanley Proto (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
J5418M PRIMARY The Stanley Works Dba Stanley Proto (USA)
1AN43 W.w. Grainger, Inc. Div Government Sales Division (USA)
Related Parts
3110-00-156-7980INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 5120-01-399-9637?

NSN 5120-01-399-9637 is a Socket,socket Wrench, 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 5120-01-399-9637?

NSN 5120-01-399-9637 has 7 cross-referenced part numbers: AS955 TY1CL1STA (General Services Administration Federal Supply Service), AS955 (Sae International Dba Sae International), AS954 (Sae International Dba Sae International), 5418M (The Stanley Works Dba Stanley Proto), AS954 TY1CL1STA (General Services Administration Federal Supply Service) and 2 more.

What NSN replaces 5120-01-399-9637?

There is 1 known substitute for 5120-01-399-9637: 3110-00-156-7980. Verify interchangeability with system specifications before substitution.

What are the specifications of J5418M?

Key specifications for J5418M: Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE; Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Features Provided: MANUAL TOOL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9637 still in active supply?

NSN 5120-01-399-9637 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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