The PANDUIT CW-14-L Belleville compression washer is a critical component for assemblies involving aluminum connectors attached to copper or steel pads. Its conical spring design compensates for the differing rates of thermal expansion between these materials, preventing loosening and maintaining a secure connection. Manufactured from hardened steel and cadmium-plated for corrosion resistance, this washer provides high strength and durability in various industrial applications. Refer to page D2.164 for assembly instructions.