Hugh Monahan Beshers, 82, an engineer who was a retired official of the Commerce Department's business and defense services administration, died Oct. 5 at his home in Jefferson, Frederick County, Md., after a heart attack.

In 1941, Mr. Beshers moved to Washington and began his government career with the War Production Board. From 1946 to 1948, he was chief engineer with E.R. Squibb & Sons in New Jersey, then returned to Washington and the government.

He worked for the Atomic Energy Commission, the civil defense agency, and the National Production Authority before joining Commerce in 1953. He retired as director of the business and defense services administration's power and electrical equipment division in 1965.

He belonged to the American Society of Civil Engineers and the American Society of Mechancial Engineers. Mr. Beshers was a member of the Frederick Unitarian Fellowship and a founder and past president of the Frederick Organization for Rehabilitation.

In addition to his government career, he had owned and operated a beef cattle farm near Poolesville for 15 years before retiring to Jefferson in 1965. He also maintained a home in Sarasota, Fla.

Mr. Beshers was a native of Illinois and earned a bachelor's degree in civil engineering at the University of Illinois. He served in the Army during World War I.

Survivors include his wife, Caroline N., of Jefferson and Sarasota; three sons, Daniel N., of Tenafly, N.J., James M., of New York City, and Eric W., of Washington; a sister, Martha Johnson of Osceola, Mo.; 11 grandchildren, and one great-grandchild.