The Freudenberg-NOK 0.421" O-Ring, crafted from 70 durometer VMQ silicone, is engineered for superior sealing performance in demanding applications. With a cross-section of 0.139", this O-Ring is designed to withstand high temperatures and various chemicals, making it suitable for automotive and industrial uses. It adheres to ISO standards, ensuring quality and reliability. The VMQ material offers excellent elasticity and resistance to aging, providing a long-lasting sealing solution. Ideal for use in hydraulic systems and other critical applications, this O-Ring is essential for maintaining system integrity.