Size: 8AN to 8AN ORB. Size: The thread size of 8AN is 3/8-16 UNF, and the thread size of AN8 ORB is 3/8-16 UNF. Thread Size: 8 AN male flare to 8 ORB O-ring. Seal: The AN side of the flare is sealed by a 37 degree angle and The ORB side is sealed with an O-ring.
