The Freudenberg-NOK SP426 is a reliable PTFE white spiral backup ring with an inner diameter of 4.625 inches and an outer diameter of 5.125 inches. This product adheres to the AS568-426 standard, ensuring compatibility with a wide range of sealing applications. Constructed from durable PTFE, it provides excellent chemical resistance and thermal stability, making it ideal for use in hydraulic and pneumatic systems. The 1/4 inch thickness ensures effective sealing and prevents extrusion, enhancing the performance and longevity of your sealing solutions.
