321st Air Refueling Squadron: 15 April 1958 – 15 March 1965 (detached 11 April–13 July 1960, 3 October 1961–January 1962)
301st Air Refueling Wing: 2 July 1966 – 31 March 1970; 1 July 1973 – 1 July 1975; 7 July 1989 – 14 June 1991
301st Air Refueling Wing: 31 March 1970 – 1 July 1973; 1 July 1975 – 30 September 1979
: Attached to: 301st Bombardment Wing, Very Heavy, 17 March-16 May 1948
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