Compression Fitting Nut, Application Air, Inert Gases, Non-Combustible Gases, Fitting Material Brass, Material Grade C36000, Maximum Operating Pressure 200 psi, Maximum Operating Temperature 250 Degrees F, Overall Length 1 1/16 in, Thread Size 11/16 In. -20, Specific Fitting Shape Long Nut, System of Measurement Imperial, Compatible Tube Outer Diameter 1/2 in, Compatible Fitting Brands Parker, Series Compression, Standards SAE J512, Compatible Tube Hardness Not Applicable. This item has been restricted from sale in the following state (s): []