Fastpipe compressed air fitting Application Air Fitting Side A Connection Type Compression Fitting Side B Connection Type FNPT Fitting Material Nylon Fitting Side A Tube Outer Diameter 50 mm Maximum Operating Pressure 190 psi Maximum Operating Temperature 140 Degrees F Overall Length 5 in Specific Fitting Shape Straight Adapter Fitting Side B Pipe Size 1/2 in Standards ASTM B221 ASTM B444 Color Blue Compatible Pipe Material Brass Copper Iron Stainless Steel