Some items from this specific schematic: Connector, Valve Comp.,air, Cushion Assy.,rr., Wash,plain 14mm.
This F-28 REAR CUSHION assembly utilises five O-ring,5.8x1.9(s) - the highest specified component.
The F-28 Rear Cushion assembly is constructed from several parts from which the Cushion Assy.,rr. is the most expensive.