BLADE HOLDER HUB FOR MOWERS MOWERS MTD : 21-53 , 375 , 46BAE , 51S , C46 , E478 , GE46X , GE48X , GES46X , GES46XE , GES53 , GES53E , HB53L , HBM50 , MH464B , RMB53S , RMB46 , RMB46SE , SB46 , YM5019SE , YM5021E MODEL - TECHNICAL CHARACTERISTICS OUTER DIAMETER 22. 2 mm SHAFT DIAMETER 30 mm HEIGHT 19 mm INSERTION DEPTH - mm CODE: 13270456 ORIGINAL CODE 753-0484 , 748-0323 , 948-0323 SR