UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
( ) Check this box if no longer subject to Section 16.
Form 4 or Form 5 obligations may continue. See Instructions 1(b).
1. Name and Address of Reporting Person
   VANDE STEEG, NICKOLAS
   6035 Parkland Boulevard
   Cleveland, OH  44124-4141
2. Issuer Name and Ticker or Trading Symbol
   PARKER HANNIFIN CORPORATION
   PH
3. IRS or Social Security Number of Reporting Person (Voluntary)

4. Statement for Month/Year
   March 31, 2002
5. If Amendment, Date of Original (Month/Year)

6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   ( ) Director ( ) 10% Owner (X) Officer (give title below) ( ) Other
   (specify below)
   VICE PRESIDENT AND OPERATING OFFICER
7. Individual or Joint/Group Filing (Check Applicable Line)
   (X) Form filed by One Reporting Person
   ( ) Form filed by More than One Reporting Person


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 Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned                                                 |
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1. Title of Security       |2.    |3.    |4.Securities Acquired (A)         |5.Amount of        |6.Dir |7.Nature of Indirect       |
                           | Transaction |  or Disposed of (D)              |  Securities       |ect   |  Beneficial Ownership     |
                           |      |      |                                  |  Beneficially     |(D)or |                           |
                           |      |    | |                  | A/|           |  Owned at         |Indir |                           |
                           | Date |Code|V|    Amount        | D |    Price  |  End of Month     |ect(I)|                           |
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Common stock               |      |    | |                  |   |           |2,648.401(1)       |I     |(1)                        |
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Common stock               |3/8/02|M   | |6,979(2)          |A  |$26.083    |15,258(4)          |D     |                           |
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Common stock               |3/8/02|F   | |2,301             |D  |$54.00     |15,258(4)          |D     |                           |
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Common stock               |3/8/02|M   | |5,703(3)          |A  |$24.667    |15,258(4)          |D     |                           |
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Common stock               |3/8/02|F   | |1,880             |D  |$54.00     |15,258(4)          |D     |                           |
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Common stock               |3/8/02|S   | |4,678             |D  |$54.00     |15,258(4)          |D     |                           |
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 Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned                                                   |
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1.Title of Derivative |2.Con-  |3.   |4.    |5.Number of De |6.Date Exer|7.Title and Amount  |8.Price|9.Number    |10.|11.Nature of|
  Security            |version |Transaction | rivative Secu |cisable and|  of Underlying     |of Deri|of Deriva   |Dir|Indirect    |
                      |or Exer |     |      | rities Acqui  |Expiration |  Securities        |vative |tive        |ect|Beneficial  |
                      |cise    |     |      | red(A) or Dis |Date(Month/|                    |Secu   |Securities  |(D)|Ownership   |
                      |Price of|     |      | posed of(D)   |Day/Year)  |                    |rity   |Benefi      |or |            |
                      |Deriva- |     |      |               |Date |Expir|                    |       |ficially    |Ind|            |
                      |tive    |     |      |           | A/|Exer-|ation|   Title and Number |       |Owned at    |ire|            |
                      |Secu-   |     |    | |           | D |cisa-|Date |   of Shares        |       |End of      |ct |            |
                      |rity    |Date |Code|V|  Amount   |   |ble  |     |                    |       |Month       |(I)|            |
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Phantom Stock Units   |1-for-1 |     |    | |           |   |     |     |            |       |       |1,847.993(5)|I  |(5)         |
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Option to buy         |$26.083 |3/8/0|M   | |13,500(2)  |D  |8/16/|8/15/|Common stock|13,500(|(6)    |0(7)        |D  |            |
                      |        |2    |    | |           |   |96   |05   |            |2)     |       |            |   |            |
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Option to buy         |$24.667 |3/8/0|M   | |10,500(3)  |D  |8/15/|8/14/|Common stock|10,500(|(6)    |0(7)        |D  |            |
                      |        |2    |    | |           |   |97   |06   |            |3)     |       |            |   |            |
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Option to buy         |$44.4200|8/8/0|A   |V|9,250      |A  |8/08/|8/07/|Common stock|9,250  |(6)    |9,250(7)    |D  |            |
                      |        |1    |    | |           |   |02   |11   |            |       |       |            |   |            |
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Option to buy         |$44.4200|8/8/0|A   |V|9,250      |A  |8/08/|8/07/|Common stock|9,250  |(6)    |9,250(7)    |D  |            |
                      |        |1    |    | |           |   |03   |11   |            |       |       |            |   |            |
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Option to buy         |$54.08  |3/8/0|A   |V|4,797      |A  |3/8/0|8/14/|Common Stock|4,797  |(6)    |4,797(7)    |D  |            |
                      |        |2    |    | |           |   |3    |06   |            |       |       |            |   |            |
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                      |        |     |    | |           |   |     |     |            |       |       |            |   |            |
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Explanation of Responses:
(1)  Parker Retirement Savings Plan, as of December 31, 2001, the latest date
for which information is available.
(2)  "Pyramid" stock option exercise resulting in net acquisition of 6,979
shares.
(3)  "Pyramid" stock option exercise resulting in net acquisition of 5,703
shares.
(4)  Previously reported 6,597 shares held jointly with Mr. Vande Steeg's wife
as indirect ownership.
(5)  Savings Restoration Plan, as of December 31, 2001, the latest date for
which information is available.
(6)  Granted under the Corporation's 1993 Employee Stock Incentive Program in a
transaction exempt under Rule
16b-3.
(7)  In addition to the options reported hereon, Mr. Vande Steeg also owns
51,665 additional options which were
granted under the Corporation's 1993 Stock Incentive Program, at various
exercise prices and expiration dates, as
previously
reported.
SIGNATURE OF REPORTING PERSON
Thomas L. Meyer, Attorney-in-Fact
DATE
April 10, 2002