The Freudenberg-NOK Industrial Services Dichtomatik O-Ring features a 2.600" inner diameter and a 0.210" cross-section, made from 90 durometer NBR (Nitrile Butadiene Rubber). This O-Ring is designed for reliable sealing in various applications, particularly in environments where oils and chemicals are present. The high-quality NBR material ensures excellent durability and resistance, meeting industry standards for performance. Ideal for automotive and industrial uses, this O-Ring provides a dependable seal, enhancing the efficiency and reliability of your systems.