Spacer, which is placed between pedal arm and bottom bracket

Fit:

FC3403,FC3450,FC3503,FC3550,FC4500,FC4503,FC4550,

FC4600,FC4603,FC4650,FC4700,FC4703,FC5600,FC5603,

FC5650,FC5700,FC5703,FC5750,FC5800,FC6600,FC6601,

FC6603,FC6604,FC6650,FC6700,FC6703,FC6750,FC6800,

FC7800,FC7803,FC7900,FC7950,FC9000,FCCX50,FCCX70,

FCM4050,FCM4060,FCM532,FCM542,FCM545,FCM552,FCM580,

FCM581,FCM590,FCM591,FCM600,FCM601,FCM610,FCM612,

FCM615,FCM617,FCM622,FCM625,FCM640,FCM645,FCM660,

FCM665,FCM670,FCM672,FCM675,FCM677,FCM760,FCM761,

FCM770,FCM771,FCM780,FCM782,FCM785,FCM800,FCM8000,

FCM805,FCM820,FCM825,FCM9000,FCM9020,FCM970,FCM980,

FCM985,FCMT700,FCMX70,FCMX71,FCR350,FCR550,FCR563,

FCR565,FCR600,FCR601,FCR603,FCR700,FCRS500,FCS500,

FCS501,FCT4060,FCT551,FCT611,FCT661,FCT671,FCT780,

FCT781,SMBB91

The orange part no. 5 on the picture.