Cap Application Air Flammable Liquid Freon Inert Gases Non-Combustible Gases Potable Water Fitting Connection Type Flared Fitting Tube Size Outer Diameter 5/16 in Hex Size 5/8 in Maximum Operating Pressure 2 800 psi Maximum Operating Temperature 250 Degrees F Overall Length 5/8 in Specific Fitting Shape Cap Fitting Thread Size 1/2-20 Fitting Material Brass Flare Angle 45 Degrees Standards SAE J512 SAE J513 Compatible Tube Material Aluminum Brass Copper Steel