Long Nut Application Air Inert Gases Non-Combustible Gases Fitting Material Brass Maximum Operating Pressure 300 psi Maximum Operating Temperature 250 Degrees F Overall Length 3/4 in Thread Size 7/16-24 Specific Fitting Shape Long Nut System of Measurement Imperial Compatible Tube Outer Diameter 1/4 in Series Compression Standards SAE J512 Compatible Tube Material Aluminum Copper Thermoplastic Fitting Connection Type Compression Hex Size 1/2 in