Material Composition: Fittings from forged or cast pressure resistant carbon steel with a zinc-trivalent anti-corrosion coating. 6506 JIC fitting interchange to the following manufacturers: Aeroquip 2242, Parker G6X, Weatherhead C5256. JIC SAE 37° and SAE ORB (O-Ring Boss) conform to SAE J514 technical specifications. NPTF Female Pipe x 37° JIC Female Swivel Nut Adapter. 6506 JIC fitting interchange to the following manufacturers: Aeroquip 2242, Parker G6X, Weatherhead C5256. Material Composition: Fittings from forged or cast pressure resistant carbon steel with a zinc-trivalent anti-corrosion coating. JIC SAE 37° and SAE ORB (O-Ring Boss) conform to SAE J514 technical specifications.