James F. Parslow, 58, director of operations at Western Electric's regional headquarters at Cockeysville, Md., died Monday at Sinai Hospital in Baltimore after an apparent heart attack.

Mr. Parslow joined Western Electric, the manufacturing and supply company of the Dell System, in 1947 as an industrial engineer.

After working in New York and Ohio he came to the Cockeysville headquarters in 1966. The faculty serves the Bell telephone companies of Washington, Virginia, Maryland, West Virginia, Pennsylvania and Delaware. He became director of operations in 1969.

Mr. Parslow was born in Ottawa Ontario, and earned a bachelor's degree from Clarkson College of Technology in Potsdam, N.Y.

He served in the Royal Canadian Air Force in Europe during World War II.

Mr. Parslow had served on the board of directors of the Baltimore Chamber of Commerce from 1975 to 1977. He was a member of the Maryland Golf and Country Club and the Maryland chapter of the Telephone Pioneers.

He is survived by his wife, Eleanor K., and a daughter, Jill A. both of the home in Bel Air, Md.; another daughter, Lynne Koehler, of Livingston, N.J.; two sons, James H. of Beaumont, Tex., and Scott W., of Edgewood, Md.