Back Ferrule Finish/Coating Colorless Dry Lubricant Fitting Material Stainless Steel Material Grade 316 Maximum Operating Pressure 10 300 psi Maximum Operating Temperature 1 200 Degrees F Specific Fitting Shape Back Ferrule Compatible Fitting Brands Swagelok Compatible Tube Outer Diameter 3/16 in Series A-LOK(R) Standards ASTM 31.3 Compatible Fitting Connection Type Compression Minimum Operating Temperature 425 Degrees F