PARTS KIT,BALL VALV

The United States Navy is seeking a parts kit for a size 1 1/2 inch Hull and Backup Valve, consisting of one Ball and two mating Seats. The parts must meet specific material and testing requirements, including quantitative chemical and mechanical analysis. The contractor must also provide a certificate of compliance and maintain a quality system in accordance with ISO-9001. The parts will be used in a crucial shipboard system, and the material has been designated as SPECIAL EMPHASIS material (Level I, Scope of Certification, or Quality Assured). Some key points include: * The parts kit must consist of one Ball and two mating Seats. * The Ball must be made of SAE-AMS-6931 or Centrifugally cast 6AL-4V, ASTM-B367, Grade C-5. * The Seats must be made of MD71-GG Mearthane (Graphite Filled Urethane). * The parts must meet specific testing and certification requirements. * The contractor must provide a certificate of compliance and maintain a quality system in accordance with ISO-9001.