The Freudenberg-NOK O-Ring, with a cross-section of 4.5 MM and an inner diameter of 52 MM, is made from high-quality NBR (Buna) material with a 70 durometer rating. This black O-Ring is specifically designed for sealing applications that require excellent resistance to oils, fuels, and other chemicals. Its robust construction ensures durability and reliability in various industrial settings. Ideal for manufacturers seeking effective sealing solutions, this O-Ring meets industry standards for performance and compatibility.