Sagitta (AK-87) was never commissioned and thus never bore the USS designation. The ship, contracted as the Maritime Commission MV Moses Pike, transferred to Navy supervision for construction and was then transferred shortly after launch as Sagitta (AK-87) to the Army to become the Engineer Port Repair Ship Marvin Lyle Thomas. She was one of two such repair ships transferred to Navy in 1952 and served as the civilian crewed, unarmed USNS Sagitta (T-AK-87). The ship may have been unique among her type in being then transferred back to the Army in 1966.