BALL & SEAT SET

The U.S. Navy is issuing a solicitation for a Ball & Seat Set to be used in a critical shipboard system. The set consists of one ball (SAE‑AMS‑6931 or 6Al‑4V, ASTM‑B367) and two mating seats (MD71‑GG Mearthane graphite‑filled urethane) that must meet strict material, dimensional, surface‑waviness, coating (Chemours Teflon), and testing requirements (hydrostatic, dye‑penetrant, non‑destructive). All parts are classified as Special Emphasis (Level I) material, requiring a one‑year warranty, traceability, certification, and compliance with numerous MIL‑STD, ISO, and Navy specifications. The contractor must hold at least a Confidential security clearance, submit test certifications via the ECDS/WAWF system, and adhere to rigorous quality‑system (ISO‑9001 or MIL‑I‑45208) and configuration‑control procedures. The award will be a bilateral contract; acceptance must be signed before execution. • Supply of one ball and two seats per kit, meeting drawing 255583 (ball) and 255584 (seats). • Materials: SAE‑AMS‑6931 (or 6Al‑4V) for the ball; MD71‑GG Mearthane for seats. • Required tests: hydrostatic (30 min, no leakage), dye‑penetrant, NDT, surface waviness ≤ 0.0005 in/in. • Teflon coating (Chemours 850G‑204/852G‑201) and visual inspection of seats. • One‑year warranty from delivery, full traceability, and certification of all inspections. • Contractor must have Confidential (or higher) clearance and submit data via ECDS/WAWF. • Quality system must be ISO‑9001/ISO‑10012/ISO‑17025 compliant; MIL‑I‑45208 acceptable. • All documentation, waivers, and engineering change proposals must be approved by the Contracting Officer.