The Nut,flange,6mm is the lowest priced item on this Cylinder/cylinder Head schematic.
Some items from this specific schematic: Bolt,oil Check, Seal,exhaust Pipe, Spark Plug (ngk), Cylinder Comp..
The Nut, Flange, 8mm is the most widely applied product in the CR125R 1991 (M) GERMANY CYLINDER/CYLINDER HEAD ( nine times ).