Steel Nut Application Air Flammable Liquid Freon Inert Gases Non-Combustible Gases Fitting Thread Size 3/8-24 Flare Angle Inverted Fitting Material Brass Hex Size 3/8 in Maximum Operating Pressure 1 900 psi Maximum Operating Temperature 250 Degrees F Overall Length 9/16 in Specific Fitting Shape Flared Nut Compatible Tube Outer Diameter 3/16 in Standards SAE J512 Compatible Tube Material Aluminum Brass Copper Steel Fitting Connection Type Flared