BLADE FOR MURRAY MOWER CUTTING MACHINES FOR MODELS 30504X92 A , 30545X92 B, 30544X92 D , 30550X30 A , 30575X31 A , 30577X31 A MODEL - TECHNICAL SPECIFICATIONS LENGTH 765 mm CENTRAL BORE 21. 5 mm OUTER HOLE - mm CENTRAL HOLE INDEX - mm CODE: 13270331 ORIGINAL CODE 056246E701MA , 456246 , 56060 , 56246 , 55969 SR