Nut Application Air Inert Gases Non-Combustible Gases Fitting Material Brass Maximum Operating Pressure 150 psi Maximum Operating Temperature 250 Degrees F Overall Length 5/8 in Thread Size 13/16-18 Specific Fitting Shape Nut System of Measurement Imperial Compatible Tube Outer Diameter 5/8 in Series Compression Standards SAE 060110 Compatible Tube Material Thermoplastic Fitting Connection Type Compression Hex Size 15/16 in Minimum Operating Temperature 65 Degrees F