Sealing: The AN side of the flare is sealed by a 37-degree angle and The ORB side is sealed with an O-ring. Size: The thread size of -6AN is 9/16-18 UNF, the thread size of -8AN ORB is 3/4-16 UNF. Material: The -8AN to -6AN orb reducer is made of aluminum alloy 6061-T6 which is an anodized black surface.
