71 c20 brake booster to pedal pin parts?

[it2castelo]

Does anyone know the part numbers or anywhere i can order the" tension washer? " and retaining clip that attaches to the pin that goes to the brake booster and pedal arm lever? Fumble nuts here dropped them and cannot find them. I think they bounced into the grass off the driveway and a magnet is not finding them. I dont even know what they are called and am having trouble finding pictures of them. Thanks for the help

71 c20