Ismer C. (Carl) Sleight, a mettallurgical engineer, died Saturday of a brain tumor at Fairfax Hospital. He was 62.

Born in Sinton, Tex., Mr. Sleight grew up in Pasadena, Calif., and graduate [TEXT OMITTED FROM SOURCE] mines in Golden, Colo. He was a registered professional engineer in the several states where he worked and belonged to many technical societies.

Mr. Sleight was technical assistant to the associate technical director of the U.S. Naval Ordnance test station of China Lake, Calif., from 1948 to 1954. From 1954 until 1967, he was manager of the Rocket Motor Division of the Aerojet General Corp. in Sacramento, Calif.

After three years was vice president of instrument maufacturing for the Keuffel and Esser Co. in Morristown, N.J., Mr. Sleight moved to the Washington area in 1971 to become vice president and general manager of Hunter Associates Laboratory in Fairfax.

Mr. Sleight is survived by his wife, Esther M., his daughters, Sarah and Mary, and a son, Robert, all of the family home in Fairfax; and a sister, Maide Hawkins, of LaMerda, Calif.

The family suggests that epxressions of sympathy be in the form of contributions to the building fund for the Oakton United Methodist Church in Oakton, Va.