Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
WASHKEWICZ DONALD E
  2. Issuer Name and Ticker or Trading Symbol
PARKER HANNIFIN CORP [PH]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman and CEO
(Last)
(First)
(Middle)
PARKER-HANNIFIN CORPORATION, 6035 PARKLAND BOULEVARD
3. Date of Earliest Transaction (Month/Day/Year)
04/24/2006
(Street)

CLEVELAND, OH 44124-4141
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock               23,724.976 I Parker Retirement Savings Plan
Common Stock               989 (1) I Ann Washkewicz Revocable Trust
Common Stock 04/24/2006   M   5,008 (2) A $ 28.083 87,150 D  
Common Stock 04/24/2006   M   789 (3) A $ 41.8125 87,939 D  
Common Stock 04/24/2006   M   32,339 (4) A $ 35.9375 120,278 D  
Common Stock 04/24/2006   F   15,999 D $ 84.52 104,279 D  
Common Stock 04/24/2006   G V 22,137 D $ 0 82,142 D  
Common Stock 04/24/2006   G V 22,137 A $ 0 27,390 I Pamela Washkewicz Revocable Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Option to Buy $ 28.083 04/24/2006   M     7,500 (2) 01/30/1998 01/29/2007 Common Stock 7,500 (2) $ 0 (5) 0 D  
Option to Buy $ 41.8125 04/24/2006   M     1,560 (3) 10/31/1998 10/30/2007 Common Stock 1,560 (3) $ 0 (5) 0 D  
Option to Buy $ 35.9375 04/24/2006   M     56,260 (4)   (6) 08/08/2010 Common STock 56,260 (4) $ 0 (5) 0 D  
Option to Buy $ 82.05 04/24/2006   A   771   04/24/2007 10/30/2007 Common Stock 771 $ 0 (7) 771 D  
Option to Buy $ 82.05 04/24/2006   A   23,921   04/24/2007 08/08/2010 Common Stock 23,921 $ 0 (7) 23,921 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WASHKEWICZ DONALD E
PARKER-HANNIFIN CORPORATION
6035 PARKLAND BOULEVARD
CLEVELAND, OH 44124-4141
  X     Chairman and CEO  

Signatures

 Thomas L. Meyer, Attorney-in-Fact   04/26/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Reflects Mr. Washkewicz's proportionate interest.
(2) "Pyramid" stock option exercise resulting in net acquisition of 5,008 shares.
(3) "Pyramid" stock option exercise resulting in net acquisition of 789 shares.
(4) "Pyramid" stock option exercise resulting in net acquisition of 32,339 shares.
(5) Granted under the Corporation's 1993 Stock Incentive Program in a transaction exempt under Rule 16b-3.
(6) The option vested in two equal installments on 8/9/2001 and 8/9/2002.
(7) Granted under the Corporation's 2003 Stock Incentive Plan in a transaction exempt under Rule 16b-3.

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