517-055==>BEARING SET TURBINE SIDE (PCS)
517-075==>LOCATING BEARING (PCS)
520-018==>LABRYINTH RING (PCS)
520-021==>RING NUT (PCS)
520-028==>THRUST RING (PCS)
520-035==>LOCATING RING (PCS)
520-038==>RING NUT (PCS)