The Freudenberg-NOK Dichtomatik OR 4.725" 70 NBR N703W is a precision-engineered O-ring that offers exceptional sealing capabilities. Made from NBR (Nitrile Butadiene Rubber), this O-ring has a cross-section of 0.210" and a hardness of 70 Shore A, providing excellent resistance to various oils and fuels. Its dimensions are designed for compatibility with standard grooves, ensuring a secure fit and reliable performance in automotive and industrial applications, adhering to strict industry standards for quality and durability.