Some items from this specific schematic: Rub.l.case Damp., A.c.generator, Screw Cross 6x45, Cover,l.crankcase.
The Washer,plain is the cheapest item from this partsfiche.
This schematic depicts all components used in the Cb400tii Hawkii 1978 Usa Left Crankcase Cover / Alternator partslist.