A.J. (Jack) Viehman Jr., 39, the president of Masters Printers of America, a division of the Printing Industries of America Inc., was killed Wednesday in the crash of the Air Florida jetliner near National Airport.

D.C. police said Mr. Viehman's body was recovered from the Potomac River Monday and identified Tuesday.

A native of West Virginia, Mr. Viehman graduated from Marshall University in Huntington, W. Va. He worked for an insurance company and the Kentucky Press Association until 1970, when he moved to the Washington area as director of state association relations with the National Association of Mutual Insurance Agents.

In 1972, he became program director of the Master Printers of America. He was promoted to vice president in 1976 and became its president in 1981. The Master Printers and its parent organization, the Printing Industries of America Inc., represent the industrial relations interests of member companies.

Mr. Viehman traveled extensively giving labor seminars. He also was a member of the executive board of the Council on Union Free Environment, a division of the National Association of Manufacturers.

Survivors include his wife, Dolores, and two daughters, Jennifer and Laura, all of Arlington; his parents, Dr. and Mrs. A.J. Viehman of Nashville, Tenn.; a brother, William C., of Altanta, and a grandmother, Mrs. Walter C. Viehman of Huntington, W.Va.

The family suggests that expressions of sympathy be in the form of contributions to the Arthur J. Viehman Jr. Memorial Fund, c/o Master Printers of America, 1730 N. Lynn St., Arlington, Va., 22209.