This is sold as a set that contains eight washers. These parts attach to the tank and are made out of metal. They are genuine items that are supplied by the original equipment manufacturer for use with Craftsman air compressors. During replacement, it may require a wrench to help install these parts correctly. They will require replacing if they become bent or broken.
This is a genuine part which is supplied directly from the original equipment manufacturer, and used for Craftsman miter saws. The Allen wrench allows you adjust various fasteners on the miter saw. This part is sold individually. This wrench is made of medal, and measures 5-MM.