SMITH A O CORP — Director's Dealing 2005

Nov 18, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2005-11-17

Reporting Person: MASSA RONALD E (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-11-17	Common Stock	M	6150	$18.00	Acquired	33756	Direct
2005-11-17	Common Stock	M	12375	$16.333	Acquired	46131	Direct
2005-11-17	Common Stock	S	18525	$34.5196	Disposed	27606	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-11-17	Employee Stock Options (Right to Buy)	$18.00	M	6150	Disposed	2006-06-11	Common Stock (6150)	Direct
2005-11-17	Employee Stock Options (Right to Buy)	$16.333	M	12375	Disposed	2006-10-08	Common Stock (12375)	Direct

Footnotes

F1: Options were granted on 06/11/1996 under the A. O. Smith Corporation 1990 Long-Term Executive Incentive Compensation Plan, a Rule 16b-3 Plan.

F2: Options were granted on 10/08/1996 under the A. O. Smith Corporation 1990 Long-Term Executive Incentive Compensation Plan, a Rule 16b-3 Plan.