Material: High pressure carbon steel with zinc trivalent anti-corrosion coating. 6402 ORB equivalent to the following: SAE 140230, Parker F650X, Weatherhead C5216. SAE ORB straight thread o-ring boss hydraulic fittings meet SAE J514 specifications and are used for fluids in hydraulic applications. Available in stainless steel: SS-6402. SAE O-Ring Boss ORB Male x 37° JIC SAE Flare Female Swivel Nut Adapter. 6402 ORB equivalent to the following: SAE 140230, Parker F650X, Weatherhead C5216. Available in stainless steel: SS-6402. Material: High pressure carbon steel with zinc trivalent anti-corrosion coating. SAE ORB straight thread o-ring boss hydraulic fittings meet SAE J514 specifications and are used for fluids in hydraulic applications.