The Nut,flange,6mm is the lowest priced item on this Air Suction Valve (ar/sw) schematic.
Some items from this specific schematic: Joint Comp.,rr.tu, Clamp,tube (d17), Stay,air Suction, Bolt,flange,6x22.
This schematic depicts all components used in the Vt1100c Shadow 1994 (r) Austria / Kph Air Suction Valve (ar/sw) partslist.