SPLIT FLANGE SEAL FOR 4-BOLT SPLIT FLANGE CONNECTOR Split Flange seals are one-piece dual durometer urethane static seals. The black outer shell is a tough, extrusion-resistant 95 Durometer material and the yellow inner layer is 57 Durometer which has a low compression set and excellent sealing properties. These seals are a direct replacement for O-rings and do not require modification to any split flange groove. It fits SAE J518 4-Bolt code 61 and code 62 split flanges.
