The Screw,oval,5x20 is the lowest priced item on this Meter schematic.
Of all the components used in this assembly the Meter Assy.,comb. is the most expensive.
Parts such as the Meter: Oring,6.8x1.9, Tachometer Assy, Bolt,flange,6x30, Nut,hex.cap,5mm are included in the Ns400r 1985 (f) France Meter parts fiche.