Vito N. Vallone, 73, who came to Washington from Italy, worked in the building trades, ran an Italian grocery store, and then was a security guard, died Tuesday at his home in Silver Spring. He had cancer.

Mr. Vallone was born in Bari, Italy. He immigrated to the United States about 1921 and settled in Washington. He was a plasterer here until 1947, when he opened the Capitol Italian Products grocery store at North Capitol and P streets.

He operated the business until 1964, when he closed it. Then he became a security guard for Government Employees Insurance Co. until his retirement in 1970.

Mr. Vallone was a member of Roma Lodge No. 71 of the Order of the Sons of Italy. In 1972, he received a citation from the lodge in recognition of his 50 years of membership. His services to the organization included a term as Venerable, an office equivalent to president.

He also was a member of the old Church of the Redeemer, an Italian Baptist church in Washington that disbanded some years ago.

Mr. Vallone's survivors include his wife, Annie M., whom he married on Sept. 29, 1929, of the home in Silver Spring; to daughters, Annie N. Dant, of Annandale, and Emilia Vaz, of Sacannah, Ga.; a son, Ralph, of Wheaton, two sisters, Teodora Giove and Lillie Albergo, both of Edgewater, Md., and 10 grandchildren.