PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5424Socket,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9621 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9621 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9621. Primary manufacturer part number: J5424.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Size: 0.750 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Features Provided: MANUAL TOOL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9621, 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 8 commercial cross-references from 7 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
NSN5120-01-399-9621
Primary Part NumberJ5424
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
Wrenching Surface Size0.750 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Surface TreatmentCHROMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1660-00-062-052155424 INTERCHANGEABLE
Cradle Assembly,oxygen Converter
Shaw Development, Llc
3110-00-100-59423877-3820 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
6685-00-544-7984J5424 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Bellofram Corporation
7240-00-551-3795 INTERCHANGEABLE
Pail,utility
3110-00-629-4112ST4M151-10 INTERCHANGEABLE
Retainer and Rollers,bearing
Jtekt Bearings North America Llc Div Kbna - Ord 1
5935-00-815-6636 INTERCHANGEABLE
Connector,plug,electrical
5950-00-888-0447672-0335-010 INTERCHANGEABLE
Transformer,power
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
7510-01-008-8125 INTERCHANGEABLE
Dry Transfer Sheet
5930-01-053-1060J54-24 INTERCHANGEABLE
Switch,pressure
United Electric Controls Company
5999-01-181-8938 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Cross-Reference Index
Part NumberManufacturer
J5424 The Stanley Works Dba Stanley Proto (USA)
AS954 Society of Automotive Engineers Inc (USA)
J5424 Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
5424 The Stanley Works Dba Stanley Proto (USA)
J5424 Henchman Products Pty Ltd (AUS)
1AM70 W.w. Grainger, Inc. Div Government Sales Division (USA)
Related Parts
1660-00-062-0521INTERCHANGEABLE
CRADLE ASSEMBLY,OXYGEN CONVERTER
55424
3110-00-100-5942INTERCHANGEABLE
BEARING,ROLLER,TAPERED
3877-3820
6685-00-544-7984INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
J5424
7240-00-551-3795INTERCHANGEABLE
PAIL,UTILITY
3110-00-629-4112INTERCHANGEABLE
RETAINER AND ROLLERS,BEARING
ST4M151-10
5935-00-815-6636INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5950-00-888-0447INTERCHANGEABLE
TRANSFORMER,POWER
672-0335-010
7510-01-008-8125INTERCHANGEABLE
DRY TRANSFER SHEET
5930-01-053-1060INTERCHANGEABLE
SWITCH,PRESSURE
J54-24
5999-01-181-8938INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
3120-01-263-0338INTERCHANGEABLE
BEARING,WASHER,THRUST
4730-01-513-7591INTERCHANGEABLE
REDUCER,HOSE
8036468

Frequently Asked Questions

What is NSN 5120-01-399-9621?

NSN 5120-01-399-9621 is a Socket,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-399-9621?

NSN 5120-01-399-9621 has 8 cross-referenced part numbers: J5424 (The Stanley Works Dba Stanley Proto), AS954 (Society of Automotive Engineers Inc), J5424 (Henchman Group Pty Ltd the Trustee for Henchman Unit Trust), AS954 TY1CL1STA (General Services Administration Federal Supply Service), AS954 (Sae International Dba Sae International) and 3 more.

What NSN replaces 5120-01-399-9621?

There are 12 known substitutes for 5120-01-399-9621: 1660-00-062-0521, 3110-00-100-5942, 6685-00-544-7984 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J5424?

Key specifications for J5424: Wrenching Surface Size: 0.750 INCHES NOMINAL SINGLE END IN; Style Designator: INTERNAL-INTERNAL; Material: STEEL OVERALL; Drive Surface Size: 0.500 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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