The Freudenberg-NOK Silicone O-Ring is designed with a 1.8mm cross-section and a 4mm inner diameter, crafted from 70 Shore silicone. This O-Ring is ideal for applications that require high flexibility and excellent temperature resistance, making it suitable for both high and low-temperature environments. Its chemical resistance allows it to be used in various industries, including food processing and pharmaceuticals. The O-Ring complies with industry standards, ensuring safety and reliability in sealing applications. This product is an excellent choice for engineers seeking durable and effective sealing solutions.