The fourteen Cbr600f Hurricane 1987 (h) Germany / Kph 50p Gasket Kit A component parts are all listed in this schematic.
A sample from the products for the Gasket Kit A include: Washer,sealing,6., Gasket,breather P (mca), Gasket Kit A, Seal,valve Stem.
The most reasonably priced component used on the Cbr600f Hurricane 1987 (h) Germany / Kph 50p Gasket Kit A is the O-ring,15x2.5.