Parts such as the Starter Motor: Pinion Assy., O-ring, Gasket A (nas), Bolt,flange,sh,6x40 are included in the Nh125 Aero 125 1984 (e) Usa Starter Motor parts fiche.
The twenty-four Nh125 Aero 125 1984 (e) Usa Starter Motor component parts are all listed in this schematic.
On this parts fiche the Screw-wash,5x30 is the most specified component.