The twenty-two Xs400 1982 Maxim Usa Swing Arm - Suspension component parts are all listed in this schematic.
The most reasonably priced component used on the Xs400 1982 Maxim Usa Swing Arm - Suspension is the Bolt(3ap).
On this parts fiche the Brg,cyl-cal Roller 25.5g Nt is the most specified component.