Nut Application Potable Water Fitting Material Brass Maximum Operating Pressure 120 psi Maximum Operating Temperature 250 Degrees F Overall Length 11/16 in Thread Size 1 1/8-18 Specific Fitting Shape Nut/Sleeve System of Measurement Imperial Compatible Tube Outer Diameter 7/8 in Standards NSF 61 Annex G Compatible Tube Material Aluminum Copper Thermoplastic Fitting Connection Type Compression Minimum Operating Temperature 65 Degrees F