Freudenberg-NOK's Dichtomatik OR 4.359" 75 EPDM E750FM is a premium O-ring designed for industrial applications. With a diameter of 4.359 inches and a cross-section of 0.139 inches, this O-ring is made from high-performance EPDM material, providing excellent resistance to heat, ozone, and various chemicals. Rated at 75 Shore A hardness, it ensures a reliable seal under pressure. This O-ring complies with industry standards, making it suitable for use in hydraulic and pneumatic systems, ensuring longevity and performance.