Parts such as the Front Master Cylinder: Nut, Self-locking, Brake Hose Assy, Bolt, Flange(3dm), Holder 2 are included in the Fjr1300a 2006 3p61 England 1e3p6-300e1 Front Master Cylinder parts fiche.
In this schematic the "Gasket (nas)" is used most often.
The lowest price component in this Front Master Cylinder parts-list fiche is the Bolt, Flange(4my).