Forged Nut Application Potable Water Fitting Thread Size 7/16-20 Flare Angle 45 Degrees Fitting Material Brass Hex Size 5/8 in Maximum Operating Pressure 1 400 psi Maximum Operating Temperature 250 Degrees F Overall Length 7/16 in Specific Fitting Shape Nut Compatible Auto Systems Domestic Compatible Tube Outer Diameter 1/4 in Standards NSF/ANSI 61 Annex G Fitting Connection Type Flared Minimum Operating Temperature 65 Degrees F