Nut Application Air Fitting Material Brass Maximum Operating Pressure 150 psi Maximum Operating Temperature 200 Degrees F Overall Length 13/32 in Thread Size 5/16-24 Specific Fitting Shape Nut System of Measurement Imperial Compatible Tube Outer Diameter 3/16 in Series NTA Standards DOT FMVSS 571.106 SAE J1131 SAE J246 Fitting Connection Type Compression Hex Size 7/16 in Minimum Operating Temperature 40 Degrees F