With a quantity of two pieces, the Bolt(6x20) is the most used part in the FUEL COCK diagram.
Some items from this specific schematic: Bolt(6x20), Clip, Gasket(6.4x11.5x0.8) (nas), Lock Washer.
The sub assemblies and components that make up this Fuel Cock include this Cock Assembly,fuel, the most expensive part.