SMITH A O CORP — Director's Dealing 2005

Nov 21, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2005-11-18

Reporting Person: COLE MICHAEL J (Vice President - Asia)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-11-18	Common Stock	M	9225	$16.459	Acquired	22467	Direct
2005-11-18	Common Stock	S	9225	$36.0124	Disposed	13242	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-11-18	Employee Stock Options (Right to Buy)	$16.459	M	9225	Disposed	2006-03-18	Common Stock (9225)	Direct

Footnotes

F1: Options were granted on 03/18/1996 under the A. O. Smith Corporation 1990 Long-Term Executive Incentive Compensation Plan, a Rule 16b-3 Plan.