The Freudenberg-NOK Dichtomatik OR 0.421" 70 EPDM E703B is a high-performance O-ring designed for effective sealing in various applications. Made from durable EPDM material, it offers excellent resistance to heat, ozone, and environmental factors, ensuring long-lasting performance. With a cross-section of 0.139", this O-ring fits standard grooves, providing a secure seal under pressure. It meets industry standards for compatibility, making it suitable for hydraulic and pneumatic systems. This O-ring is crucial for preventing leaks and maintaining system efficiency.