The BVA Hydraulics Back-Up Washer features a 2-3/16 inch outer diameter and is designed to prevent extrusion and enhance sealing in hydraulic applications. Made from durable materials, this washer provides excellent resistance to wear and pressure, ensuring reliable performance in demanding environments. Its design allows for effective load distribution, making it ideal for use with various seals and gaskets. This back-up washer is essential for maintaining the efficiency and integrity of hydraulic systems, providing a secure and stable connection.