Some items from this specific schematic: Screw-wash Spl, Bulb,wedge Base, Bolt,socket,6x14, Elbow Boss.
Of all the components that make up this Meter (1) the Screw,oval,5x20 has the lowest price.
The Meter (1) assembly is constructed from several parts from which the Meter Assy.comb. is the most expensive.