The Freudenberg-NOK Dichtomatik OR 4.850" 0.210" 90 NBR N901W is a high-quality O-ring designed for reliable sealing in various applications. Made from durable Nitrile Butadiene Rubber (NBR), this O-ring offers excellent resistance to oils, fuels, and other chemicals, making it ideal for industrial use. With a size of 4.850" in outer diameter and a cross-section of 0.210", it fits standard applications requiring a robust sealing solution. This product meets industry standards for performance and durability, ensuring long-lasting functionality in demanding environments.