A sample from the products for the Kickstarter Mechanism include: Circlip-type-e,8mm, Guide-kick, Screw,tapping, Washer, 16.8x22x0.5.
This part-list fiche shows all the components that make up the Ar80c3 1985 Usa / Mph Kickstarter Mechanism .
In this schematic the "Circlip-type-c,16mm" is used most often.