In this schematic the "O-ring,13.8x2.4" is used most often.
Parts such as the Front Cushion: Arm Comp.,l.fr.su, Bolt,flange,10x53, Seat,cush Spring, Arm Comp.,r.fr.su are included in the C90z Cub 1992 (n) Mexico / Kph Mk Ss Front Cushion parts fiche.
Of all the components that make up this Front Cushion the Bolt, Hex., 8x50 has the lowest price.