Tube Nut Application Air Inert Gases Non-Combustible Gases Fitting Material Brass Maximum Operating Pressure 2 800 psi Maximum Operating Temperature 250 Degrees F Overall Length 15/32 in Thread Size 1/2-24 Specific Fitting Shape Nut/Sleeve System of Measurement Imperial Compatible Tube Outer Diameter 5/16 in Series Compress-Align Compatible Tube Material Thermoplastic Fitting Connection Type Compression Hex Size 9/16 in Minimum Operating Temperature 65 Degrees F