Some items from this specific schematic: O-ring,35.3x2.4, Gskt.sheet Kit,a (nas), O-ring,29x2.4, Seal,water Pipe 2.
The component with the lowest price in the GASKET KIT A schematic is the Washer Seal, 6mm.
The Gasket Kit A assembly is constructed from several parts from which the Wash,o-ring Kit,a is the most expensive.