Heinz W. (Henry) Steinbach, 66, a longtime executive in the retail clothing business in Washington who was treasurer of Britches of Georgetown and a former president of the old Lewis & Thos. Saltz Co., died Feb. 4 at Fairfax Hospital, where he had undergone heart surgery.

In addition to his business career, Mr. Steinbach was a noted chess player. He was a former D.C. and Virginia state champion and a life member of the U.S. Chess Federation. He also was a member of the Arlington Chess Club and played on its team.

A resident of Falls Church, Mr. Steinbach was born in Vienna, Austria. He came to the United States in 1936 and settled in Washington. He graduated from Woodrow Wilson High School and George Washington University.

He began working for Lewis & Thos. Saltz in the early 1940s and rose to be vice president and general manager. In 1977, after the store was taken over by new ownership, he was named president and chief operating officer and placed in charge of an expansion program. The firm grew from two stores to five stores and an expanded line of women's wear was added to its traditional line of men's wear.

In 1979, Mr. Steinbach resigned. In 1980 he joined Britches and was its treasurer until his death.

Survivors include his wife, Katherine C. Steinbach of Falls Church; two children, Carol S. Ronka of Cincinnati and Brian Steinbach of Chicago; one sister, Lora Dugard of Fort Valley, Va., and two grandchildren.