Female High Side Hose Fitting, Refrigerant Type 134A, R12, R22, R502, MP39, MP66 and R404A, Female Thread (In.) 5/8-18, Dash Size 6, Min. Burst Pressure (PSI) 2000, Max. Working Pressure (PSI) 500, Hose Outside Dia. (In.) 0.58, Hose Inside Dia. (In.) 0.31, Material Steel, For Use With Male O-Ring, Standards SAE J2064