The component with the lowest price in the GASKET KIT A schematic is the Washer C,8mm.
The Gasket Kit A is made up of components including this Gasket Kit A (nas) which is the most expensive.
Parts such as the Gasket Kit A: Seal,valve Stem, Washer C,sealing, O Ring 31.5x2.0, Seal,valve Stem are included in the Cn250 Helix 1991 (m) Italy Kph Gasket Kit A parts fiche.