Parts such as the Oil Pump: Washer,lock, O Ring(d:1.3,id:7.6), Gasket(6.2x11x1).2 (nas), Bolt are included in the As50 1971 (r) Usa (e03) Oil Pump parts fiche.
Check out any of the twenty-one Oil Pump components enlisted.
The most expensive part in this assembly is the Cap,oil Pump Inspection.