About this item Size: The thread size of 4AN and AN4 ORB is 7/16-20 UNF. Seal: The AN side of the flare is sealed by a 37 degree angle and The ORB side is sealed with an O-ring. Material: Made of aluminum alloy 6061-T6 body and NBR rubber O-ring. Parameter: Working pressure: 1500PSI. Working temperature：-65°F-252°F. O-ring temperature range: -4°F-392°F. Application: Suitable for fuel rail, oil cooler, fuel pump, fuel pressure regulator, fuel filter, etc.
