The Freudenberg-NOK AS568-206 O-Ring features a 1/2" inner diameter and a 3/4" outer diameter, crafted from FDA-compliant NBR (BUNA) 70 material. This black O-Ring is designed for applications requiring food safety compliance, ensuring it meets stringent health standards. With a thickness of 1/8", it provides reliable sealing in various environments, including food processing and pharmaceutical applications. Its robust construction offers excellent resistance to wear and chemicals, ensuring long-lasting performance.