Flare Adapter 37 Degrees Fitting Side A Connection Type 37 Degrees Flare Fitting Side B Connection Type Compression Fitting Material Stainless Steel Fitting Side A Tube Outer Diameter 1/2 in Fitting Side B Tube Outer Diameter 1/2 in Material Grade 316 Maximum Operating Pressure 6 700 psi Specific Fitting Shape Straight Adapter Series A-LOK System of Measurement Imperial Standards ASTM 31.3 Hex Size 13/16 in