Slip Ring ER/EF,IR/EF - 17mm ID x 28mm OD x 1.6mm Thick Copper Rings (12135, 12148, 12151, 12163, 12167, 12223, 13023, 13058, 13100, 13119, 13122, 13147, 13150, 13153, 13154, 13155, 13161, 13187, 13193, 13216, 13218, 13225, 13233, 13281, 13291, 13300, 13315, 13320, 13360, 13373, 13374, 13375, 13399, 13402, 13403, 13459, 13468, 13469, 13602, 13603, 13607, 13608, 13609, 14000, 14062, 14066, 14294, 14394, 14420, 14536, 14554, 14603, 14765, 14778, 14782, 14783, 14785, 14789, 14791, 14798, 14800, 14812, 14813, 14814, 14820, 14821, 14822, 14824, 14825, 14876, 14944, 14948, 14956, 14964, 14965, 14969, 14971, 14972, 14988, 14997, 13362 - 13371)