The 3.18 MM CS X 57.15 MM ID PTFE O-RING from FREUDENBERG-NOK INC is designed for high-performance sealing in various applications. This O-ring features a cross-section of 3.18 mm and an inner diameter of 57.15 mm, making it suitable for a wide range of fittings and connections. Made from high-quality PTFE, it offers excellent chemical resistance and can withstand extreme temperatures. This O-ring is ideal for use in hydraulic and pneumatic systems, ensuring a reliable seal that prevents leaks and maintains system integrity.