The Freudenberg-NOK AS568-352 SIMRIZ SZ498 O-ring is designed for high-performance sealing with a 4-7/8" inner diameter and a 5-1/4" outer diameter, featuring a 3/16" cross-section. Made from advanced SIMRIZ material, it provides excellent chemical and thermal resistance, making it suitable for a variety of industrial applications. This O-ring complies with AS568 standards, ensuring a precise fit and reliable sealing performance. Its robust construction ensures durability and reliability in challenging environments.