Nut Application Potable Water Fitting Material Brass Maximum Operating Pressure 300 psi Maximum Operating Temperature 250 Degrees F Overall Length 7/16 in Thread Size 1/2-24 Specific Fitting Shape Nut/Sleeve System of Measurement Imperial Compatible Tube Outer Diameter 5/16 in Standards NSF 61 Annex G Compatible Tube Material Aluminum Copper Thermoplastic Fitting Connection Type Compression Minimum Operating Temperature 65 Degrees F