Tube End Insert, Application Air, Natural Gas, Potable Water, Propane, Steam, Compatible Fitting Connection Type Compression, Compatible Tube Outer Diameter 3/8 in, Compatible Tube Inner Diameter 47/250 in, Finish/Coating Unpolished, Fitting Material Stainless Steel, Material Grade 316, Maximum Operating Pressure 6,600 psi, Maximum Operating Temperature 1,200 Degrees F, Overall Length 9/16 in, Specific Fitting Shape Tube Insert, System of Measurement Imperial, Standards ASTM 31.3