ORK rubber seal product and production reference An 80 Shore A HNBR connector seal engineered for EV battery housings, hydrogen-exposed systems and high-pressure connectors that demand thermal and coolant resistance. ORK rubber seal product and production reference Product Overview This HNBR connector seal is supplied at 22 mm ID, 4 mm cross section and 30 mm outer diameter. The 80 Shore A compound is formulated for static sealing up to 20 MPa and for connectors exposed to