Silent Stop Disc Brake Rotor BR31311 NOS Government Property SurplusFree Shipping New Old Stock Silent Stop Disc Brake Rotor BR31311 NOS PT-20TS BR31311 MIN THK 19MM Parts may have some superficial scuffing or minor surface rusting from shelf/storage wear. Measuring Devices shown in picture for scale only – they are not included with listing. Government Surplus New Old Stock Free Shipping