The 4713th Defense Systems Evaluation Squadron is an inactive United States Air Force unit.
 It was last assigned to the 21st Air Division, Aerospace Defense Command at Westover AFB, Massachusetts.
  It was inactivated on 15 April 1974.
The 4713th Defense Systems Evaluation Squadron is an inactive United States Air Force unit.  It was last assigned to the 21st Air Division, Aerospace Defense Command at Westover AFB, Massachusetts.   It was inactivated on 15 April 1974.
4713th Defense Systems Evaluation Squadron