94001-05490-0S Nut, Hex (5MM) - Overview. The 94001-05490-0S Nut, Hex (5MM) is an essential fastening component used in Honda marine engine systems. This 5mm hexagonal nut plays a crucial role in securing various components within the rigging and accessory systems, ensuring stability and reliability during marine operations. Engineered to match Honda factory specifications, it provides seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precis