thirty-four components are listed in the schematic for this Tx500 1973 Usa Master Cylinder - Brake Hose .
A sample from the products for the Master Cylinder - Brake Hose include: Diaphragm, Reserver, Bracket, Master Cylinder, Pipe,brake, Front Stop Switch Assy (447).
On this parts fiche the Bolt, Union (481) is the most specified component.