J. Bennett Spang, a retired vice president of a mechanical contracting company, died Tuesday after an apparent heart attack at his home in Strafford, Pa. He was 76.

Graveside services for Mr. Spang were being held today at Spesutia Cemetery in Perryman. In addition, a memorial service will be held at 2 p.m. tomorrow at Wayne Presbyteri

an Church.

He retired in 1981 as a vice president of Riggs Distler & Co. Inc. and head of its Philadelphia office. He began working for the company in 1936 in Baltimore. Mr. Spang also was a partner in a family-owned business in Aberdeen, Dell's Pharmacy.

The Aberdeen native earned an engineering degree in 1936 from Johns Hopkins University.

Mr. Spang was a member for more than 50 years of the Aberdeen Lodge of the Masons.

Survivors include his wife, the former Sarah Atkins; a daughter, Janet Lynn Spang of Cleveland; and a brother, Charles O. Spang of Aberdeen.