431st Air Refueling Squadron
The 431st Air Refueling Squadron is an inactive United States Air Force unit. It was last assigned to the 4440th Aircraft Delivery Group at Biggs Air Force Base, Texas, where it was inactivated on 8 March 1965. From 1957 to 1965, it operated modified Superfortress bombers to refuel tactical Fighter, reconnaissance, and light bomber aircraft.