10AN PTFE One Piece Full Flow Hose End Fitting 90 Degree Swivel Only for PTFE Hose Aluminum Black 2PCS. [Size] Thread Size of 10AN PTFE Fitting is 7/8-14UNF. Applications:Only used with PTFE fuel lines for E85, alcohol, nitro, clutch, nitrous, power steering, oiling, hydraulics and vacuum applications.