90202-ZVA-000 Nut (5MM) - Overview. The 90202-ZVA-000 Nut (5MM) is a critical fastening component designed for Honda marine engine systems. This 5mm flange cap nut plays an essential role in securing various engine parts, ensuring structural integrity and reliable operation of your marine equipment. Manufactured to match exact factory specifications, tolerances, and dimensions, it guarantees a precise fit and seamless integration with existing hardware to maintain optimal performance and durabil