Plug Application Gases Oils Fitting Connection Type Compression Fitting Material Brass Fitting Tube Size Outer Diameter 1/8 in Maximum Operating Pressure 3 600 psi Maximum Operating Temperature 400 Degrees F Specific Fitting Shape Plug System of Measurement Imperial Compatible Fitting Brands A-LOK Fitting Thread Size 5/16-20 Series A-LOK(R) Standards NACE NORSOK Minimum Operating Temperature 40 Degrees F Resistance Properties Corrosion-Resistant Vibration-Resistant