94001-06490-0S Nut Hex (6mm) - Overview. The 94001-06490-0S Nut Hex (6mm) is an essential fastening component used in Honda marine engine systems. It plays a crucial role in securing various mechanical assemblies, ensuring reliability and durability in demanding marine environments. Manufactured to match Honda's exact factory specifications, this hex nut is designed for seamless integration with existing parts, maintaining optimal performance and durability across Honda Active Marine application