Plug Application Air Flammable Liquid Freon Inert Gases Non-Combustible Gases Potable Water Fitting Connection Type Flared Fitting Tube Size Outer Diameter 3/8 in Hex Size 5/8 in Maximum Operating Pressure 2 800 psi Maximum Operating Temperature 250 Degrees F Overall Length 7/8 in Specific Fitting Shape Seal Plug Fitting Thread Size 5/8-18 Fitting Material Brass Flare Angle 45 Degrees Standards SAE J512 SAE J513 Compatible Tube Material Aluminum Brass Copper Steel