Nut, Application Fluids, Gases, Fitting Material Stainless Steel, Material Grade 316, Maximum Operating Temperature 1,200 Degrees F, Overall Length 23/32 in, Thread Size 7/16-20, Specific Fitting Shape Nut, System of Measurement Imperial, Compatible Tube Outer Diameter 1/4 in, Series Ferulok, Standards SAE J514, Fitting Connection Type Compression, Hex Size 9/16 in, Minimum Operating Temperature 425 Degrees F