Parts such as the Cylinder: Gasket,cylinder (nas), O Ring(d:3.05), Bolt,stud, O Ring(d:2,id:74) are included in the Gs1000s 1979 (n) Usa (e03) Cylinder parts fiche.
In this schematic the "Bolt,stud" is used most often.
The sub assemblies and components that make up this Cylinder include this Gasket,cylinder (nas), the most expensive part.