STAINLESS COMRESSION UNION Application Air Chemicals Gases Non-Potable Water Oils Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Stainless Steel Fitting Side A Tube Outer Diameter 6 mm Fitting Side B Tube Outer Diameter 4 mm Material Grade 316 Maximum Operating Temperature 1 500 Degrees F Overall Length 38 19/32 mm Specific Fitting Shape Straight Connector Compatible Fitting Brands Swagelok System of Measurement Metric