Exhibit 8.1 to Report
                                   on Form 8-K
                                  Current Report
                          by Parker-Hannifin Corporation


                        Opinion of Jones, Day, Reavis & Pogue


                                              June 3, 1996


Parker-Hannifin Corporation
17325 Euclid Avenue
Cleveland, Ohio  44112


          Re:  Parker-Hannifin Corporation Medium-Term Notes


Ladies and Gentlemen:

          We have acted as special tax counsel to Parker-Hannifin 
Corporation (the "Company") in connection with its medium-term notes (the 
"Notes"), which may be issued in one or more series and may be offered and 
sold in the United States from time to time, as set forth in the Company's 
Prospectus (the "Prospectus"), dated May 3, 1996, and the Company's 
Prospectus Supplement (the "Prospectus Supplement"), dated June 3, 1996.  
 
          This letter will be deemed accepted by you in the form hereof upon 
the filing of the Prospectus Supplement with the Securities and Exchange 
Commission.  Your acceptance of this letter in the form hereof constitutes 
your acceptance of, and acquiescence in, the assumptions, exclusions, 
limitations and rules of construction set forth below.
 
 
1.     AUTHORITIES EXAMINED
 
          In rendering the opinion set forth below, we have examined and relied 
upon provisions of the Internal Revenue Code of 1986, as amended (hereinafter 
"I.R.C." or the "Code"); final, temporary and proposed regulations promulgated 
under the Code by the U.S. Department of the Treasury; administrative 
pronouncements issued by the U.S. Internal Revenue Service; judicial decisions 
rendered by U.S. Federal courts of competent jurisdiction; and such other 
sources and authorities that we have deemed relevant in reaching the conclusions
expressed herein.


Parker-Hannifin Corporation
June 3, 1996
Page 2
 


2.     OPINION
 
          Based upon the foregoing, and subject to the assumptions, exclusions 
and limitations set forth below, we are of the opinion that the discussion 
contained in the section of the Prospectus Supplement entitled "United States 
Taxation" accurately reflects the material United States federal income tax 
consequences of the ownership and disposition of the Notes purchased by an 
initial Holder (as defined in such section) thereof at the "issue price" (as 
defined in such section).
 
 
3.     ASSUMPTIONS
 
          In rendering the opinion set forth above, we have assumed (and we
have made no independent investigation or inquiry whatsoever to confirm, and we 
expressly disclaim any intent, undertaking or obligation to make any such 
investigation or inquiry to confirm) that:
 
     3.1.     Each document that was required to be executed but was not 
              executed, or that was otherwise not in final form, on the date on
              which we examined such document, will be timely executed and/or 
              delivered in final form, which final form will not differ in any 
              material respect from the form in which such document was 
              examined by us on such date.
 
     3.2.     The representations made to us by officers of the Company,
              whether orally or in writing, with respect to the subject
              matter of the opinion set forth above are true, correct and
              complete in all material respects as of the date they were made
              and at all times thereafter through and including the date
              hereof.
 
     3.3.     The transactions contemplated by the Prospectus Supplement will 
              not contravene any obligation to which any party is subject.
 
     3.4.     All assumptions made in connection with the delivery of any other 
              opinion to the addressee hereof or any other person, whether by 
              ourselves or by any other professional adviser, in connection 
              with any transaction or subject matter reasonably related to the
              subject matter of our opinion set forth above are correct at all
              relevant times through and including the later of the date of 
              such other opinion and the date hereof.
 

Parker-Hannifin Corporation
June 3, 1996
Page 3



4.     EXCLUSIONS
 
          Anything in the foregoing to the contrary notwithstanding, we 
expressly decline to opine upon, and expressly disclaim any intent, undertaking 
or obligation to opine upon, and hereby expressly exclude from the scope of the 
opinion set forth above, the following matters:
 
     4.1.     Any and all matters arising under the laws of any State of the 
              United States or the District of Columbia or any political 
              subdivision thereof.
 
     4.2.     Any and all matters arising under the laws of any country 
              other than the United States.  For this purpose, the depen-
              dencies, protectorates, territories and possessions of the 
              United States shall be deemed to be countries other than the 
              United States.
 
     4.3.     Any and all matters with respect to any tax other than the 
              U.S. Federal income tax.
 
     4.4.     The effect upon the opinion set forth above of any provision 
              of law that may affect any particular person differently from 
              any other person, by reason of such first-mentioned person's 
              special status, characteristics or situation.
 
 
5.     LIMITATIONS

     5.1.     The opinion set forth above is furnished only as to facts and 
              circumstances existing at the date hereof and actually known 
              or represented to us on such date.  If any such facts and 
              circumstances should change, or if a determination is made 
              hereafter that any such facts or circumstances were untrue or 
              inaccurate on such date, any such change or determination 
              could adversely affect or render inapplicable the opinion set 
              forth above.  We expressly disclaim any intent, undertaking or 
              obligation to notify the addressee hereof or any other person 
              of any such change or determination of which we may 
              subsequently become aware or any possible effects thereof on 
              the opinion set forth above.
 
     5.2.     The opinion set forth above is furnished in express reliance 
              on the assumptions set forth in Section 3  



Parker-Hannifin Corporation
June 3, 1996
Page 4
              hereof. If a determination is made hereafter that any such 
              assumption was untrue or inaccurate as of the date hereof, any 
              such determination could adversely affect or render inapplicable 
              the opinion set forth above.  We expressly disclaim any intent, 
              undertaking or obligation to notify the addressee hereof or 
              any other person of any such determination of which we may 
              subsequently become aware or of any possible effects thereof 
              on the opinion set forth above.
 
     5.3.     Each of the sources and authorities described in Section 1 
              hereof is subject to repeal, revocation or modification 
              without notice, possibly with retroactive effect; any such 
              repeal, revocation or modification could adversely affect or 
              render inapplicable the opinion set forth above.  The opinion 
              set forth above applies only to the subject matter thereof as 
              at the date hereof, and we expressly disclaim any intent, 
              undertaking or obligation to notify the addressee hereof or 
              any other person of any such repeal, revocation or 
              modification or any possible effects thereof on the opinion 
              set forth above.
  
     5.4.     The contents of Section 2 hereof, subject to and as modified 
              by the remaining contents hereof, constitute the entirety of 
              the opinion and advice furnished by us to the addressee hereof 
              with respect to the subject matter hereof.  This original and 
              any simultaneously executed counterparts hereof together 
              constitute one and the same original writing, which writing 
              supersedes any and all (a) prior drafts or versions hereof and 
              (b) prior or contemporaneous statements, conclusions, 
              representations, writings, understandings, opinions, dis-
              cussions and other communications in any form between us and 
              any addressee hereof relating to the subject matter hereof.  
              In proving the existence or contents of this letter, it shall 
              not be necessary to produce, refer to or account for (a) any 
              particular executed original counterpart hereof in preference 
              to any other such counterpart, or (b) more than one such 
              counterpart.

     5.5.     No oral communication made after the date hereof shall be 
              deemed or effective to modify the contents hereof in any 
              manner.  No written communication made 



Parker-Hannifin Corporation
June 3, 1996
Page 5
      
              after the date hereof shall be deemed or effective to modify the
              contents hereof in any manner, except to the extent that any such
              modification is explicitly set forth in such subsequent written 
              communication and contains an express reference to this letter.
 
     5.6.     In rendering the opinion contained in Section 2 hereof, we do 
              not purport to be experts on laws other than the Federal laws 
              of the United States.
 
     5.7.     The opinion set forth above is furnished solely for the 
              benefit of the addressee hereof and may not, except as 
              specifically provided below, be used, relied upon, referred to 
              or quoted by any other person without our prior specific 
              written consent thereto.  There are no express or implied 
              third-party beneficiaries of or in the opinion set forth 
              above.
 

6.     RULES OF CONSTRUCTION
 
          In interpreting the provisions of this letter, the following rules of
     interpretation and construction shall apply:
 
     6.1.     The terms and provisions hereof and the wording used herein 
              shall in all cases be interpreted and construed in accordance 
              with their fair meanings and not strictly for or against any 
              person.
 
     6.2.     Capitalized terms used herein without definition have the res-
              pective meanings set forth in the Prospectus or Prospectus 
              Supplement.
 
     6.3.     The captions at the headings of each Section of this letter 
              are provided for convenience of reference only, and are in no 
              way intended or to be used or applied to describe, interpret, 
              construe, define or limit the scope, extent, intent, meaning 
              or operation of any term or provision hereof.
 
     6.4.     Unless the context clearly requires otherwise, each reference 
              to, and each use of, any of the masculine, feminine or neuter 
              genders herein shall be deemed to constitute a reference to, 
              and a use of, each such gender without distinction.


Parker-Hannifin Corporation
June 3, 1996
Page 6


     6.5.     Unless the context clearly requires otherwise, each reference 
              to, and each use of, either the singular or plural number 
              herein shall be deemed to constitute a reference to, and a use 
              of, each such number without distinction.

                                   ****

          We hereby consent to the furnishing of the opinion as Exhibit 8.1 
to Registration Statement No. 333-07261 on Form S-3 filed by the Company to 
effect registration of the Notes under the Securities Act of 1933 and to the 
reference to us under the caption "United States Taxation" in the Prospectus 
Supplement. 


                                          Very truly yours,


                                          Jones, Day, Reavis & Pogue

                                          Jones, Day, Reavis & Pogue