The Ducati 004 CLUTCH has eighteen products enlisted in the schematic.
Parts such as the 004 Clutch: Boss, Clutch, Spring Washer, Disk, Clutch Pressure, Spring Washer are included in the Scsport1000 2007 Eu (sportclassic Sport 1000 Biposto) 9151-2522a 004 Clutch parts fiche.
In this schematic the "Clutch Spring" is used most often.