Nut Application Potable Water Fitting Material Brass Maximum Operating Pressure 200 psi Maximum Operating Temperature 250 Degrees F Overall Length 5/8 in Thread Size 11/16-20 Specific Fitting Shape Nut/Sleeve System of Measurement Imperial Compatible Tube Outer Diameter 1/2 in Standards NSF 61 Annex G Compatible Tube Material Aluminum Copper Thermoplastic Fitting Connection Type Compression Minimum Operating Temperature 65 Degrees F