The AS568-442 7 1/4" ID x 7 3/4" OD x 1/4" SIMRIZ SZ481 O-ring by Freudenberg-NOK is engineered for superior sealing performance in various industrial applications. Constructed from high-quality SIMRIZ material, this O-ring offers exceptional resistance to chemicals and extreme temperatures. With precise dimensions of 7 1/4 inches inner diameter and 7 3/4 inches outer diameter, it ensures a perfect fit and reliable sealing. The 1/4" thickness provides effective compression, making it ideal for hydraulic and pneumatic systems. This product adheres to industry standards, making it suitable for automotive, aerospace, and manufacturing applications, ensuring durability and efficiency.