Parts such as the Fuel Tank: Clamp,fuel Tube, Clip B7,tube, Bolt,flg Dr 8x32, Clip B14,tube are included in the Ns400r 1985 (f) Australia Fuel Tank parts fiche.
In this schematic the "Cush,fuel Tank" is used most often.
The Screw-washer,5x12 is the lowest priced item on this Fuel Tank schematic.