PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5228Socket,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9543 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9543 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9543. Primary manufacturer part number: 5228.
Features
  • Socket,socket Wrench — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Wrenching Surface Size: 0.875 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9543, 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 11 commercial cross-references from 9 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
NSN5120-01-399-9543
Primary Part Number5228
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Wrenching Surface Size0.875 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
MaterialSTEEL OVERALL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorINTERNAL-INTERNAL
Features ProvidedMANUAL TOOL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3020-00-066-8812 INTERCHANGEABLE
Gear
3110-00-155-664360470P265 INTERCHANGEABLE
Bearing,roller,cylindrical
Patterson Pump Co Div Patterson Pump Company
5965-00-167-125512-511951-1 INTERCHANGEABLE
Headset-Microphone
General Dynamics Mission Systems, Inc.
5120-00-242-3330 INTERCHANGEABLE
Socket,socket Wrench
6250-00-299-6982GE3327 INTERCHANGEABLE
Lampholder
General Electric Company
2805-00-350-33135228 INTERCHANGEABLE
Flywheel
Renk America Llc Div Renk America
2520-00-358-9745A3266W49 INTERCHANGEABLE
Cover
Meritor Industrial Products, Llc
3110-00-554-53091495-39 INTERCHANGEABLE
Bearing,ball,annular
Sioux Tools Inc
5961-00-950-72225228 INTERCHANGEABLE
Transistor
Tdk-Lambda Americas Inc. Div High Power Division
4210-01-160-804515320002 INTERCHANGEABLE
Nozzle,fire Equipment
Akron Brass Company
Cross-Reference Index
Part NumberManufacturer
5228 The Stanley Works Dba Stanley Proto (USA)
B-1228 WILLIAMS Kipper Tool Company Dba Kipper Management Inc (USA)
1AK15 W.w. Grainger, Inc. Div Government Sales Division (USA)
J5228 Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
B-1228 Williams J H Industrial Products Inc (USA)
AS954 Society of Automotive Engineers Inc (USA)
STP 5228 Kipper Tool Company Dba Kipper Management Inc (USA)
J5228 The Stanley Works Dba Stanley Proto (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
J5228 Henchman Products Pty Ltd (AUS)
Related Parts
3020-00-066-8812INTERCHANGEABLE
GEAR
3110-00-155-6643INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
60470P265
5965-00-167-1255INTERCHANGEABLE
HEADSET-MICROPHONE
12-511951-1
5120-00-242-3330INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6250-00-299-6982INTERCHANGEABLE
LAMPHOLDER
GE3327
2805-00-350-3313INTERCHANGEABLE
FLYWHEEL
5228
2520-00-358-9745INTERCHANGEABLE
COVER
A3266W49
3110-00-554-5309INTERCHANGEABLE
BEARING,BALL,ANNULAR
1495-39
5961-00-950-7222INTERCHANGEABLE
TRANSISTOR
5228
4210-01-160-8045INTERCHANGEABLE
NOZZLE,FIRE EQUIPMENT
15320002
6240-01-242-0149INTERCHANGEABLE
LAMP,INCANDESCENT
5228-G501
5365-01-242-0407INTERCHANGEABLE
RING
5228 15999

Frequently Asked Questions

What is NSN 5120-01-399-9543?

NSN 5120-01-399-9543 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 5120-01-399-9543?

NSN 5120-01-399-9543 has 11 cross-referenced part numbers: 5228 (The Stanley Works Dba Stanley Proto), B-1228 WILLIAMS (Kipper Tool Company Dba Kipper Management Inc), 1AK15 (W.w. Grainger, Inc. Div Government Sales Division), J5228 (Henchman Group Pty Ltd the Trustee for Henchman Unit Trust), B-1228 (Williams J H Industrial Products Inc) and 6 more.

What NSN replaces 5120-01-399-9543?

There are 12 known substitutes for 5120-01-399-9543: 3020-00-066-8812, 3110-00-155-6643, 5965-00-167-1255 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5228?

Key specifications for 5228: Surface Treatment: CHROMIUM OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE; Wrenching Surface Size: 0.875 INCHES NOMINAL SINGLE END IN; Drive End Shape: SQUARE SINGLE END INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9543 still in active supply?

NSN 5120-01-399-9543 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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