Back-up Ring Type BC / concave, cut is a high-performance support ring with a concave profile and a cut design for easy installation. Used behind O-Rings, it prevents extrusion under high pressure, enhancing sealing reliability. Made from durable materials like PTFE, Type BC is ideal for static and dynamic hydraulic and pneumatic systems, offering extended seal life and consistent performance in demanding conditions. This is a Custom Article Number with a Customer Specific Design.