The Washer,10.5x26x2.3 is the lowest priced item on this Fuel Tank schematic.
This schematic depicts all components used in the Ar50c7 1989 Europe Uk Nl Gr Sa Fuel Tank partslist.
With a quantity of two pieces, the Washer,10.5x26x2.3 is the most used part in the FUEL TANK diagram.