The Washer,plain, 6mm is the lowest priced item on this F-4 schematic.
This part-list fiche shows all the components that make up the Mt50s 1984 (e) Norway F-4 .
With all the components that make up the MT50S 1984 (E) NORWAY F-4 assembly. The Bolt Hex 6x28 is the most frequently specified with four applications.