The OR 0.859 0.139" 90 FKM V904Z O-Ring is a high-performance sealing solution crafted from 90 durometer FKM material. This O-ring is designed for high-performance applications, offering exceptional resistance to aggressive chemicals and extreme temperatures. With a diameter of 0.859 inches and a cross-section of 0.139 inches, it meets industry standards for O-rings. Ideal for use in the chemical processing, oil and gas, and pharmaceutical industries, this O-ring provides a reliable seal that enhances operational efficiency and safety.