Twin Discs/Rockford/Gear Rings
Part #:M5579DTD
AMS-1251
 OD -12-1/4"
 ID -6-1/4"
 Thickness -7/16"
 Segments -1 PC
 Teeth -72 EXT
 1 - 360 DEGREE SEGMENT
 Models: RP110, RP135, RP165, 4391TA, 6590, 6590T, 6590TA, 6591T, 6830T