PARTS KIT,VALVE

The United States Navy is seeking a parts kit for a 4-inch ball valve, consisting of one ball and two mating seats. The parts must be manufactured in accordance with specific drawings and specifications, including NAVSEA drawings 7286278 and 7285198. The ball must be made of SAE-AMS-6931 material, and the seats must be made of Delrin, a type of Teflon-filled acetal. The parts must undergo various tests, including non-destructive tests and certification tests, to ensure they meet the required standards. The contractor must also provide a certificate of compliance and maintain a quality system in accordance with ISO-9001. Some key requirements for the parts include: * The ball must have a spherical surface finish of 30-35 RHR, and the seats must have a specific gravity of 1.50-1.57 and a melting point of 172-184 degrees Celsius. * The parts must be marked with a unique traceability number and must be packaged and preserved in accordance with specific requirements. * The contractor must provide certification data, including test results and inspection reports, prior to each shipment of material.