The BVA Hydraulics O-Ring features a 4-1/2" inner diameter and 1/8" thickness, made from Buna A70 material. This O-ring is designed for effective sealing in hydraulic systems, ensuring leak-free operation. The Buna A70 material provides excellent resistance to oils, chemicals, and temperature variations, making it suitable for a wide range of applications. Ideal for use in BVA products, this O-ring is essential for maintaining the efficiency and safety of your hydraulic equipment. Ensure optimal performance with this reliable sealing solution.