Pro-werks Cadmium Plated AN Washer Kit

Pro-Werks AN flat washers are made of cadmium-plated non-hardened steel. They come in a durable plastic organizer box with 100 of each size and are used in aircraft and industrial applications for smooth bearing surfaces and weight savings.

• Their primary purpose in the aircraft industry is to provide a smooth bearing surface under a hex nut allowing for index alignment of cotter pin holes or as shims to obtain the proper grip length needed on the fastener.