SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                                          
                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR 12(g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934




                             A. O. SMITH CORPORATION
             (Exact name of registrant as specified in its charter)


                    Delaware                             39-0619790         
   (State of incorporation or organization)         (I.R.S. Employer
                                                   Identification No.)


   11270 West Park Place, Milwaukee, Wisconsin               53224            
    (Address of principal executive offices)               (Zip Code)        


   Securities to be Registered Pursuant to Section 12(b) of the Act:


   Common Stock, $1.00 Par Value             New York Stock Exchange 
   (Title of each class to be registered)   (Name of each exchange on 
                                            which each class is to be 
                                                     registered)             


   Securities to be Registered Pursuant to Section 12(g) of the Act: None

   
   ITEM 1.   Description of Registrant's Securities to be Registered.

          Common Stock, $1 Par Value.

          The capital stock of A. O. Smith Corporation (the "Company" or
          "Registrant") to be registered on the New York Stock Exchange, Inc.
          (the "Exchange") is the Registrant's Common Stock, which has a par
          value of $1 per share.

          Under the Restated Certificate of Incorporation, the Registrant has
          the authority to issue Class A Common Stock, $5 par value per
          share, Common Stock, $1 par value per share, and Preferred Stock,
          $1 par value per share.  There are no outstanding shares of
          Preferred Stock, and the Company's Class A Common Stock is listed
          on the American Stock Exchange, Inc.

          General Terms

          Each issued and outstanding share of Common Stock is fully paid and
          nonassessable, except as otherwise provided by applicable law of
          any state in which the Company holds a certificate of authority to
          do business. Under a decision of the Wisconsin Supreme Court that
          applies such statute to corporations, such as the Company, licensed
          to do business in Wisconsin, the holders of Common Stock are
          personally liable for the unpaid wage claims of the Company's
          employees, not to exceed six months' service in any one case, as
          provided in Section 180.0622(2)(b) of the Wisconsin Statutes and as
          such section may be interpreted by a court of law. The Common Stock
          has no preemptive or conversion rights nor is it entitled to any
          redemption or sinking fund provisions. The rights and preferences
          of the Common Stock are subject to the prior rights and privileges
          of any Preferred Stock of the Company. The Common Stock and the
          Class A Common Stock have identical rights and privileges, except
          with respect to the dividend and voting rights and the conversion
          rights of the Class A Common Stock, as described below.

          Dividend Rights

          Subject to the prior rights of any Preferred Stock and any
          restriction on dividends in credit and other agreements of the
          Company, dividends may be paid on the Class A Common Stock and the
          Common Stock as and when declared by the Board of Directors out of
          funds legally available therefor. The Company may not pay dividends
          on the Class A Common Stock or on the Common Stock (other than
          dividends in shares of the Class A Common Stock or Common Stock)
          unless full cumulative dividends on any outstanding series of
          authorized Preferred Stock have been, or contemporaneously are,
          declared and paid for all past dividend periods.

          No cash dividend may be paid on the Class A Common Stock unless a
          cash dividend at least equal in amount per share is paid
          concurrently on the Common Stock. The Company may pay cash
          dividends on the Common Stock in excess of dividends paid, or
          without paying dividends, on the Class A Common Stock. Stock
          dividends may be paid on the Class A Common Stock and the Common
          Stock, provided that a dividend of shares of one class of stock may
          be paid on that class of stock only if a simultaneous dividend is
          paid on the second class of stock, either in shares of the second
          class of stock or in shares of the first class of stock, in an
          amount equal on a per share basis to the dividend paid on the first
          class of stock. The shares of Class A Common Stock or Common Stock
          cannot be subdivided or combined unless there is a simultaneous
          equivalent subdivision or combination of the shares of the other
          class of stock.

          Voting Rights 

          Except for the election and removal of directors and except where a
          class vote is required by the Restated Certificate of Incorporation
          or applicable Delaware law, the Common Stock votes as a single
          class with the Class A Common Stock on all matters which may come
          before any meeting of stockholders, with each share of Common Stock
          entitled to one-tenth of one vote and each share of Class A Common
          Stock entitled to one vote.  The Restated Certificate of
          Incorporation provides for separate class voting for the approval
          of certain actions, such as the amendment of the Restated
          Certificate of Incorporation or the merger or consolidation of the
          Company, if they adversely affect the rights of stockholders of any
          class. 

          As long as the number of outstanding shares of Common Stock is at
          least 10% of the aggregate number of outstanding shares of Class A
          Common Stock and Common Stock, the holders of Common Stock are
          entitled, as a class, to elect 25% of the Board of Directors
          (rounded up to the nearest whole number). As long as the number of
          outstanding shares of Class A Common Stock is at least 12.5% of the
          aggregate number of outstanding shares of Class A Common Stock and
          Common Stock, the holders of Class A Common Stock are entitled, as
          a class, to elect the remaining directors, subject to any voting
          rights granted in connection with the creation of any series of
          authorized Preferred Stock. Under the Restated Certificate of
          Incorporation and Delaware law, only holders entitled to vote for
          election of a director are entitled to vote on removal of that
          director. 

          If, on the record date for any meeting of stockholders at which
          directors are to be elected, the number of outstanding shares of
          Common Stock is less than 10% of the aggregate number of
          outstanding shares of Class A Common Stock and Common Stock, the
          holders of Common Stock do not have the right to elect 25% of the
          Board of Directors, and all directors are elected by the holders of
          shares of Class A Common Stock and Common Stock voting together as
          a single class, subject to any voting rights of any series of
          authorized Preferred Stock, provided that, with respect to such
          election, the holders of Class A Common Stock will be entitled to
          one vote per share and the holders of Common Stock will have one-
          tenth of one vote per share.

          If, on the record date for any meeting of stockholders at which
          directors are to be elected, the number of outstanding shares of
          Class A Common Stock is less than 12.5% of the aggregate number of
          outstanding shares of Class A Common Stock and Common Stock, the
          holders of Common Stock are entitled to elect 25% of the Board of
          Directors and all remaining directors are elected by the holders of
          all shares of Class A Common Stock (with one vote per share) and
          Common Stock (with one-tenth of one vote per share) voting together
          as a single class, subject to any voting rights of any series of
          authorized Preferred Stock. 

          Conversion Rights of Class A Common Stock

          The Class A Common Stock is convertible at any time, at the option
          of the holder, into Common Stock on a share-for-share basis, upon
          surrender of stock certificates evidencing such Class A Common
          Stock to the Company or its transfer agent, Firstar Trust Company.
          Shares of Class A Common Stock are not convertible into any other
          securities. Shares of Common Stock are not convertible into Class A
          Common Stock or any other securities. 

          Liquidation Rights

          Upon liquidation, subject to the prior rights of any authorized
          Preferred Stock which may be issued, the holders of the Class A
          Common Stock and the Common Stock are entitled to share pro rata in
          any assets of the Company available for distribution to
          stockholders after payments of all debts.

          Preferred Stock

          The Board of Directors has the authority to issue Preferred Stock
          from time to time in one or more series without further stockholder
          approval. In creating any such series, the Board of Directors is
          authorized to fix the designation, number of shares and any voting
          rights (provided that, so long as any Common Stock is outstanding,
          no authorized Preferred Stock can have more than one vote per share
          nor be entitled to vote with the Common Stock in the election of
          25% of the Board of Directors), conversion rights, redemption
          provisions, dividend rates, liquidation preferences and other
          relative, participating, optional or other rights, qualifications,
          limitations or restrictions of such series.

   ITEM 2:   Exhibits

          The Common Stock of the Company is to be registered on the New York
          Stock Exchange, Inc. on which no other securities of the Registrant
          are registered. Accordingly, the following exhibits have been duly
          filed with the New York Stock Exchange but, pursuant to Instruction
          II as to Exhibits on Form 8-A, are not being filed with the
          Commission:

          Registrant's Form 10-K Annual Report for the fiscal year ended
             December 31, 1993

          Registrant's Form 10-Q Quarterly Report for the fiscal quarters
             ended March 31, 1994, June 30, 1994 and September 30, 1994

          Definitive Proxy Statement and accompanying Notice with respect to
             Registrant's Annual Stockholders' Meeting held on April 13, 1994

          Restated Certificate of Incorporation of Registrant

          By-laws of Registrant as amended

          Specimen of Registrant's Common Stock certificate

          Registrant's Annual Report to Shareholders with respect to its
             fiscal year ended December 31, 1993

   
                                    SIGNATURE

   Pursuant to the requirements of Section 12 of the Securities and Exchange
   Act of 1934, the Registrant has duly caused this registration statement to
   be signed on its behalf by the undersigned, thereto duly authorized.

                                 A. O. SMITH CORPORATION


                                 By:  DONALD M. HEINRICH
                                      Donald M. Heinrich
                                      Vice President-Business Development


   Dated:   December 5, 1994