Item 5.02. Departure of Directors or Certain Officers; Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On June 4, 2012, Robert P. Barker, a named executive officer of Parker-Hannifin Corporation (the "Company"), notified the Company that he intends to retire. Mr. Barker served as Executive Vice President, Operating Officer and President - Aerospace Group at the time he notified the Company of his retirement. Mr. Barker has agreed to remain with the Company until January 31, 2013 to assist with his successor's transition. Effective July 1, 2012, the Board of Directors of the Company elected Mr. Barker to serve, during such transition period, as an executive officer of the Company with the title Executive Vice President and Operating Officer.

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