Registration No.          
   ----------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549     

                                    FORM S-8
                             REGISTRATION STATEMENT
                                    UNDER THE
                             SECURITIES ACT OF 1933

                             A. O. SMITH CORPORATION
             (Exact Name of Registrant as Specified in its Charter)

               Delaware                                39-0619790            
 (State or Other Jurisdiction            (I.R.S. Employer Identification No.)
 of Incorporation or Organization)


                              11270 West Park Place
                          Milwaukee, Wisconsin  53224  
                    (Address of Principal Executive Offices)


                             A. O. SMITH CORPORATION
              1990 LONG-TERM EXECUTIVE INCENTIVE COMPENSATION PLAN
                   AMENDED AND RESTATED AS OF JANUARY 1, 1994

                                W. David Romoser
                  Vice President, General Counsel and Secretary
                             A. O. Smith Corporation
                              Post Office Box 23973
                            Milwaukee, WI 53223-0973
                                 (414) 359-4137
                     (Name and Address of Agent for Service)


                         CALCULATION OF REGISTRATION FEE


                                     Proposed   Proposed
                          Amount     maximum    maximum
    Title of              to be      offering   aggregate    Amount of
    securities to be    registered   price per  offering    registration
    registered             (1)       share (2)  price          fee

    Common Stock, $1    1,000,000    $21.9375   $21,937,500  $7,565
     par value          shares


   (1)  The 1990 Long-Term Executive Incentive Compensation Plan authorizes
        the issuance of a maximum of 2,000,000 shares of Common Stock.  Of
        such shares, 1,000,000 (adjusted to reflect a 2-for-1 stock split in
        the form of a 100% stock dividend paid on August 16, 1993) have been
        registered on A. O. Smith Corporation's Registration Statement on
        Form S-8 (File No. 33-37878), filed with the Commission on November
        16, 1990.

   (2)  For purposes of computing the registration fee only.  Pursuant to
        Rule 457(h), the proposed maximum offering price per share is based
        upon the average of the high and low prices of A. O. Smith
        Corporation Common Stock in American Stock Exchange composite
        transactions on December 12, 1994.

        A. O. Smith Corporation's Registration Statement on Form S-8 (File
   No. 33-37878), filed with the Securities and Exchange Commission on
   November 16, 1990, is incorporated as of its respective date in this
   Registration Statement by reference.

   
   Exhibits

   Number    Description

   * 4       A. O. Smith Corporation 1990 Long-Term Executive Incentive
             Compensation Plan, amended and restated as of January 1, 1994.

   * 5       Opinion of W. David Romoser regarding the legality of the
             securities being offered.

   * 23.1    Consent of W. David Romoser (included in his opinion filed as
             Exhibit 5)

   * 23.2    Consent of Ernst & Young LLP

   _________________

   *Filed herewith


   

                                   SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the
   Registrant certifies that it has reasonable grounds to believe that it
   meets all of the requirements for filing on Form S-8 and has duly caused
   this registration statement to be signed on its behalf by the undersigned,
   thereunto duly authorized, in the City of Milwaukee, State of Wisconsin,
   on this 13th day of December, 1994.

                                 A. O. SMITH CORPORATION



                            By:   /s/ Robert J. O'Toole
                                 Robert J. O'Toole, Chairman,
                                 President and Chief Executive Officer



                                POWER OF ATTORNEY


        We, the undersigned officers and directors of A. O. Smith
   Corporation, hereby severally constitute and appoint Robert J. O'Toole,
   Glen R. Bomberger, Thomas W. Ryan, W. David Romoser and Jolene L.
   Shellman, and each of them, agent and attorney-in-fact, with full power of
   substitution and resubstitution, for them and in their names, place and
   stead, in any and all capacities, to sign any and all amendments
   (including post-effective amendments) to this registration statement, and
   to file the same, with all exhibits thereto and other documents in
   connection therewith, with the Securities and Exchange Commission,
   granting unto said attorneys-in-fact and agents, and each of them, full
   power and authority to do and perform each and every act and thing
   requisite and necessary to be done in connection therewith, as fully to
   all intents and purposes as each of us might or could do in person, hereby
   ratifying and confirming all that said attorneys-in-fact and agents, or
   any of them, or their or his substitute(s), may lawfully do or cause to be
   done by virtue thereof.

        WITNESS OUR HANDS ON THE DATES SET FORTH BELOW.

        Pursuant to the requirements of the Securities Act of 1933, this
   registration statement has been signed below by the following persons in
   the capacities and on the dates indicated.

   Signatures                    Title                         Date

                              Chairman, President,
   /s/ Robert J. O'Toole      Chief Executive Officer 
   Robert J. O'Toole          and Director (Principal
                              Executive Officer)          December 13, 1994


                              Executive Vice President,
   /s/ Glen R. Bomberger      Chief Financial Officer 
   Glen R. Bomberger          and Director (Principal
                              Financial Officer)          December 13, 1994


                              Vice President, Treasurer
   /s/ Thomas W. Ryan         and Controller (Principal
   Thomas W. Ryan             Accounting Officer)         December 13, 1994


   /s/ Russell G.  Cleary     Director
   Russell G. Cleary                                      December 13, 1994


   /s/ Thomas I. Dolan        Director
   Thomas I. Dolan                                        December 13, 1994


   /s/ Leander W. Jennings    Director
   Leander W. Jennings                                    December 13, 1994


   /s/ Dr. Agnar Pytte        Director
   Dr. Agnar Pytte                                        December 13, 1994


   /s/ Donald J. Schuenke     Director
   Donald J. Schuenke                                     December 13, 1994


   /s/ Arthur O. Smith        Director
   Arthur O. Smith                                        December 13, 1994

   

                                  EXHIBIT INDEX


   Exhibit No.         Exhibits                                Page No.

   4              A. O. Smith Corporation 1990
                  Long-Term Executive Incentive
                  Compensation Plan, amended and
                  restated as of January 1, 1994

   5              Opinion of W. David Romoser

   23.1           Consent of W. David Romoser
                  (included in his opinion which
                  is filed as Exhibit 5)

   23.2           Consent of Ernst & Young LLP


                                                                    Exhibit 4


                             A. O. SMITH CORPORATION
              1990 LONG-TERM EXECUTIVE INCENTIVE COMPENSATION PLAN
                   AMENDED AND RESTATED AS OF JANUARY 1, 1994

   1.   Purpose

        The purpose of the A. O. Smith Corporation Long-Term Executive
   Incentive Compensation Plan ("Plan") is to induce key employees to remain
   in the employ of A. O. Smith Corporation ("Company") or Subsidiaries or
   Affiliates of the Company, and to encourage such employees to secure or
   increase on reasonable terms their stock ownership in the Company.  The
   Board of Directors of the Company believes the Plan will (1) attract and
   retain executive personnel possessing outstanding ability; (2) motivate
   executive personnel, by means of growth related incentive, to achieve
   long-range growth goals; (3) provide incentive compensation opportunities
   which are competitive with those of other major corporations; and (4)
   further the identity of interest of participants with those of the
   corporation's stockholders through opportunities for increased stock
   ownership.

   2.   Effective Date and Term of the Plan

        The Plan shall have a term of ten years from and after January 1,
   1990, the date adopted by the Board of Directors subject to approval by
   the stockholders of the Company.  The Plan supersedes and replaces, on the
   effective date, the A. O. Smith Corporation 1980 Employees' Stock Option
   Plan.  The Board of Directors, without further approval of the
   stockholders may terminate the Plan at any time but no termination shall,
   without the Participant's consent, alter or impair any of the rights under
   any option theretofore granted to him under the Plan.  The Amended and
   Restated Plan shall be effective as of January 1, 1994, the effective date
   adopted by the Board of Directors subject to approval by the stockholders
   of the Company.

   3.   Definitions

        (a)  Affiliate: Means any corporation in which the Company has 50
   percent or less ownership.

        (b)  Awards: Means the awards granted by the Committee under the
   Plan.

        (c)  Board of Directors: Means the Board of Directors of the Company.

        (d)  Committee: Means the Committee referred to in Section 4 hereof.

        (e)  Common Stock: Means the Common Stock, par value $1 per share, of
   the Company.

        (f)  Disability Date: Means the date on which a participant becomes
   eligible for disability benefits from the A. O. Smith Retirement Plan or
   such similar or successor plan.

        (g)  Disinterested Person: Means any director who at the time of
   acting is not eligible, and has not at any time within one year prior
   thereto been eligible, for selection as a participant in the Plan or as a
   person to whom stock may be allocated or to whom stock options may be
   granted pursuant to any other Plan of the Company entitling the
   Participants therein to acquire stock or stock options of the Company.

        (h)  Employee: Means any full-time managerial, administrative or
   professional employee (including any officer or director who is such an
   employee) of the Company, or any of its Subsidiaries or Affiliates.

        (i)  Fair Market Value: Means the market value of the Common Stock as
   reasonably determined by the Committee on the date the option is granted.

        (j)  Normal Retirement Date: Shall have the meaning set forth in the
   A. O. Smith Retirement Plan.

        (k)  Operating Unit: Means any division of the Company, or any
   Subsidiary or any Affiliate, which is designated by the Committee to
   constitute an Operating Unit.

        (l)  Participant: Means an Employee who is selected by the Committee
   to participate in the Plan.

        (m)  Subsidiary: Means any corporation in which the Company has more
   than 50 percent of the ownership.

        (n)  Plan Year: Means the twelve months ending December 31st.

   4.   Administration

        The Plan shall be administered by a committee which shall consist of
   not less than three (3) members of the Board of Directors of the Company,
   each of whom is a Disinterested Person.  The Committee shall be appointed
   from time to time by the Board of Directors which may from time to time
   appoint members of the Committee in substitution for members previously
   appointed and may fill vacancies, however caused, in the Committee.  A
   majority of its members shall constitute a quorum.  All determinations of
   the Committee shall be made by a majority of its members.  Any decision or
   determination reduced to writing and signed by all of the members shall be
   fully as effective as if it had been made by a majority vote at a meeting
   duly called and held.  The Committee is expressly authorized to hold
   Committee meetings by means of conference telephone or similar
   communications equipment by means of which all persons participating in
   the meeting can hear each other.  The Committee shall have sole and
   complete authority to adopt, alter and repeal such administrative rules,
   regulations and practices governing the operation of the Plan as it shall
   from time to time deem advisable and to interpret the terms and conditions
   of the Plan.

   5.   Eligibility

        Employees who, in the opinion of the Committee, are key employees and
   have demonstrated a capacity for contributing in a substantial measure to
   the successful performance of the Company shall be eligible to be granted
   options to purchase shares of Common Stock of the Company ("Shares") under
   the Option Plan.  The Committee shall, from time to time, choose from such
   eligible Employees those to whom options shall be granted.

        A Participant shall not be granted an option unless he enters into an
   agreement with the Company that he will remain in the service of the
   Company, a Subsidiary or an Affiliate for a period of at least twelve (12)
   months (commencing on the first day of the month in which the option is
   granted) or until his earlier retirement, at the pleasure of the Company,
   and at such compensation as it shall reasonably determine from time to
   time.  The agreement shall provide that it does not confer upon the
   Employee any right to continue in the employ of the Company or of any such
   Subsidiary or Affiliate, neither shall it, except for said period of at
   least 12 months, restrict the right of the Employee to terminate
   employment at any time.

   6.   Authority of Committee

        Subject to the provisions of the Plan, the Committee shall have
   complete authority, in its discretion, to determine those Employees who
   shall be Participants, the price at which options shall be granted, the
   term of the option (except in no case shall an option term be less than
   eleven months and twenty-nine days nor more than ten years) and the number
   and kind of Shares to be subject to each option.

   7.   Form of Option

        Options granted under the Plan shall be Incentive Stock Options, non-
   qualified stock options, or some combination thereof.

   8.   Option Price and Maximum Number of Option Shares

        The option price will be determined by the Committee at the time the
   option is granted and shall be 100 percent of the Fair Market Value of the
   Common Stock at the date of the grant.  The maximum number of Shares with
   respect to which options may be granted during any Plan Year to any
   Participant shall be 150,000 Shares.

   9.   Withholding

        The Company shall have the right to deduct and withhold from any cash
   otherwise payable to a Participant, or require that a Participant make
   arrangements satisfactory to the Company for payment of, such amounts as
   the Company shall determine for the purpose of satisfying its liability to
   withhold federal, state or local income or FICA taxes incurred by reason
   of the grant or exercise of an option.  

   10.  Exercise of Options

        Each option granted under the Option Plan will be exercisable on such
   date or dates and during such period and for such number of Shares as
   shall be determined pursuant to the provisions of the option agreement
   evidencing such option.  Subject to the provisions of the Plan, the
   Committee shall have complete authority, in its discretion, to determine
   the extent, if any, and the conditions under which an option may be
   exercised in the event of the death of the Participant or in the event the
   Participant leaves the employ of the Company or has his employment
   terminated by the Company.  The purchase price of any option may be paid
   (a) in cash or its equivalent; (b) with the consent of the Committee, by
   tendering previously acquired Shares valued at their fair market value as
   determined by the Committee; or (c) with the consent of the Committee, by
   any combination of (a) and (b).

   11.  Non-Transferability

        Options under the Plan are not transferable otherwise than by will or
   the laws of descent or distribution, and may be exercised during the
   lifetime of a Participant only by such Participant.

   12.  Agreements

        Options granted pursuant to the Plan shall be evidenced by stock
   option agreements in such form as the Committee shall from time to time
   adopt.

   13.  Adjustment of Number of Shares

        In the event a dividend shall be declared upon the Common Stock of
   the Company payable in Shares (other than a stock dividend declared in
   lieu of an ordinary cash dividend), the number of Shares then subject to
   any such option and the number of Shares reserved for issuance pursuant to
   the Plan but not yet covered by an option, shall be adjusted by adding to
   each Share the number of Shares which would be distributable thereon if
   such Share had been outstanding on the date fixed for determining the
   stockholders entitled to receive such stock dividend.  In the event the
   outstanding Shares of the Common Stock of the Company shall be changed
   into or exchanged for a different number or kind of Shares of stock or
   other securities of the Company or of another corporation, whether through
   reorganization, recapitalization, stock split-up, combination of Shares,
   merger or consolidation, then there shall be substituted for each Share
   reserved for issuance pursuant to the Plan, but not yet covered by an
   option, the number and kind of Shares of stock or other securities into
   which each outstanding Share shall be so changed or for which each such
   Share shall be exchanged.  In the event there shall be any change, other
   than as specified above in this paragraph in the number or kind of
   outstanding Shares or of any stock or other security into which such
   Common Stock shall have been changed or for which it shall have been
   exchanged, then if the Committee shall in its sole discretion determine
   that such change equitably requires an adjustment in the number or kind of
   Shares theretofore reserved for issuance pursuant to the Plan, but not yet
   covered by an option, and of the Share then subject to an option or
   options, such adjustment shall be made by the Committee and shall be
   effective and binding for all purposes of the Plan and of each stock
   option agreement.  The option price in each stock option agreement for
   each Share or other securities substituted or adjusted as provided for in
   this paragraph shall be determined by dividing the option price in such
   agreement for each Share prior to such substitution or adjustment by the
   number of Shares or the fraction of a share substituted for such Share or
   to which such Share shall have been adjusted.  No adjustment or
   substitution provided for in this paragraph shall require the Company in
   any stock option agreement to sell a fractional Share, and the total
   substitution or adjustment with respect to each stock option agreement
   shall be limited accordingly.

   14.  Shares Available

        There shall be reserved, for the purpose of the Plan, a total of
   2,000,000 Shares of Common Stock (or the number and kind of Shares of
   stock or other securities which, in accordance with Section 13 hereof,
   shall be substituted for said Shares or to which said Shares shall be
   adjusted).  Such Shares may be, in whole or in part, authorized and
   unissued Shares or issued Shares which shall have been reacquired by the
   Company.  In the event that (i) an option granted under the option plan to
   any employee expires or is terminated unexercised as to any Shares covered
   thereby, or (ii) Shares are forfeited for any reason under the Plan, such
   Shares shall thereafter be available for the granting of options under the
   Plan.

   15.  Expenses

        The expenses of administering the Plan shall be borne by the Company.

   16.  Non-Exclusivity

        Neither the adoption of the Plan by the Board of Directors nor the
   submission of the Plan to the stockholders of the Company for approval
   shall be construed as creating any limitations on the power of the Board
   of Directors to adopt such other incentive arrangements as it may deem
   desirable, and such arrangements may be either generally applicable or
   applicable only in specific cases.

   17.  Amendment

        The Board of Directors, without further approval of the stockholders,
   may from time to time amend the Plan in such respects as the Board may
   deem advisable; provided, however, that no amendment shall become
   effective without prior approval of the stockholders which would (a)
   increase the maximum number of Shares which may be awarded, or for which
   options may be granted, in the aggregate under the Plan; (b) reduce the
   minimum option price which may be established under the Plan; (c) change
   or add to the classes of employees eligible to receive options; or (d)
   withdraw the authority to administer the Plan from the Committee.  No
   amendment shall, without the Participant's consent, alter or impair any of
   the rights or obligations under any option theretofore granted to him
   under the Plan.


                                                                    Exhibit 5

                                 LAW DEPARTMENT

            MAILING ADDRESS: P.O. BOX 23973, MILWAUKEE, WI 53223-0973
           STREET ADDRESS: 11270 WEST PARK PLACE, MILWAUKEE, WI 53224


                      Writer's Direct Dial: (414) 359-4143
                             Fax No. (414) 359-4198

                                December 13, 1994



   A. O. Smith Corporation
   11270 West Park Place
   Milwaukee, WI  53224


   Gentlemen:


   I have acted as counsel for A. O. Smith Corporation (the "Company") in
   connection with the preparation of a Registration Statement on Form S-8
   ("Registration Statement") to be filed by you with the Securities and
   Exchange Commission under the Securities Act of 1933, as amended
   ("Securities Act"), relating to 1,000,000 shares of Common Stock, $1 par
   value per share ("Common Stock") of the Company which may be issued
   pursuant to the A. O. Smith Corporation 1990 Long-Term Executive Incentive
   Compensation Plan (the "Plan").

   In this connection, I have examined (a) signed copies of the Registration
   Statement; (b) the Restated Certificate of Incorporation and By-Laws, as
   amended to date, of the Company; (c) copies of resolutions of the Board of
   Directors and stockholders of the Company relating to the Plan; (d) the
   Form of Incentive Stock Option Agreement; (e) the Form of Nonstatutory
   Stock Option Agreement; and (f) such other proceedings, documents and
   records as I have deemed necessary for purposes of giving this opinion. 
   In addition, I have made such investigations and have reviewed such other
   documents as I have deemed necessary or appropriate under the
   circumstances.  With respect to all of the foregoing documents, I have
   assumed the genuineness of all signatures, the authenticity of all
   documents submitted to me as originals and the conformity to originals of
   all documents submitted to me as certified or reproduced copies. 

   Based upon the foregoing, I am of the opinion that:

   1.   The Company is a corporation duly organized and validly existing
        under the laws of the State of Delaware.

   2.   The Common Stock shares have been duly authorized and, when issued by
        the Company pursuant to the terms and conditions of the Plan, and as
        contemplated in the Registration Statement, will be validly issued,
        fully paid and nonassessable.  Under the laws of Delaware,
        stockholders of the Company have no personal liability for the debts
        or obligations of the Company as a result of their status as
        stockholders of the Company except that under a decision of the
        Wisconsin Supreme Court that applies such statute to corporations
        such as the Company, which are 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 month's 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.   (See Local 257 of Hotel and Restaurant Employees and
        Bartenders International Union v. Wilson Street East Dinner
        Playhouse, Inc., Case No. 82-CV-0023, Cir. Ct. Branch 1, Dane County,
        Wisconsin, aff'd. 126 Wis.2d 284, 375 N.W.2d 664 (1985)).

   I hereby consent to the use of this opinion as an exhibit to the
   Registration Statement.  In giving this consent, I do not admit that I am
   an expert within the meaning of Section 11 of the Securities Act or within
   the category of persons whose consent is required by Section 7 of said
   Act.

                                      Very truly yours,

                                      A. O. SMITH CORPORATION


     
                                      /s/ W. David Romoser
                                      W. David Romoser
                                      Vice President, Secretary
                                        and General Counsel
                                                           Exhibit 23.2




                         CONSENT OF INDEPENDENT AUDITORS


        We consent to the reference to our firm under the caption "Experts"
   in the Registration Statement (Form S-8) and related Prospectus pertaining
   to the A. O. Smith Corporation 1990 Long-Term Executive Incentive
   Compensation Plan, Amended and Restated as of January 1, 1994 for the
   registration of 1,000,000 shares of its Common Stock and to the
   incorporation by reference therein of our report dated January 19, 1994
   with respect to the consolidated financial statements and schedules of A.
   O. Smith Corporation included in its Annual Report (Form 10-K) for the
   year ended December 31, 1993, filed with the Securities and Exchange
   Commission.




                                           ERNST & YOUNG LLP


   Milwaukee, Wisconsin

   December 12, 1994