Parts such as the 010 Half Crankcases: Aluminium Gasket, Screw M6x75, Pin Dowel, O-ring are included in the M620s 2002 Usa (monster 620s) 9151-1471a 010 Half Crankcases parts fiche.
The Ducati 010 HALF CRANKCASES has thirty-eight products enlisted in the schematic.
The Spring Ring is the cheapest item from this partsfiche.