The Freudenberg-NOK Dichtomatik OR 1.609" is a high-performance O-ring made from 90 NBR (Nitrile Butadiene Rubber), offering excellent sealing capabilities against oils and fuels. This O-ring features a 0.139" cross-section, making it suitable for a variety of applications in automotive and industrial settings. The N901W model adheres to strict industry standards, ensuring durability and reliability. Its design allows for easy installation and a secure fit, making it a trusted choice for effective sealing solutions.