As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  4/4/06  Smith Bruce M                     4          Director²   1:7K   A.O. Smith Corp.                  A.O. Smith Corp.         
  4/4/06  Buehler William F                 4          Director²   1:4K   A.O. Smith Corp.                  A.O. Smith Corp.         
  4/4/06  Brown Ronald D                    4          Director²   1:4K   A.O. Smith Corp.                  A.O. Smith Corp.         
  4/4/06  O Toole Robert J                  4          Director²   1:4K   A.O. Smith Corp.                  A.O. Smith Corp.         
  4/4/06  Smith Mark D                      4          Director²   1:4K   A.O. Smith Corp.                  A.O. Smith Corp.         
  4/4/06  Wolf Idelle K                     4          Director²   1:4K   A.O. Smith Corp.                  A.O. Smith Corp.         
  4/4/06  Wulf Gene C                       4          Director²   1:5K   A.O. Smith Corp.                  A.O. Smith Corp.         

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¹	Filing/Form Type:
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.