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 1/2 in Thread Size 11/16-20 Specific Fitting Shape Nut/Sleeve System of Measurement Imperial Compatible Tube Outer Diameter 1/2 in Series Compress-Align Compatible Tube Material Brass Fitting Connection Type Compression Hex Size 13/16 in Minimum Operating Temperature 65 Degrees F Package Quantity 50