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The PARKER - 4-4K RA-SS is a stainless steel reducing adapter designed to connect pipes or fittings of different diameters and provides a transition from a larger bore to a smaller bore. Made from 316 stainless steel, it has media compatibility: air, natural gas, and oil. The adapter features a female NPT connection on Side A and a male BSPT connection on Side B, both with a nominal pipe size and outside diameter of 1/4 inch. It meets ANSI B31.1 and ANSI B31.3 standards and rated for operation within -425 to 1200 °F, maximum operating pressure: 6,200 psi. Key Features: