90508-ZZ5-M01 Plain (6Mm) Washer - Overview. The 90508-ZZ5-M01 Plain (6Mm) Washer is a precise hardware component essential for Honda marine engine systems. Its primary role is to distribute load evenly and prevent damage to surfaces during assembly, ensuring components remain securely fastened under operational stresses. This washer supports various mechanical assemblies in the engine system, contributing to reliable performance and longevity.. Key Features. Type: Plain Washer, measuring 6 mm in diameter.. System: Utilized within Honda marine engine rigging and assembly.. Suitable Engines: Compatible with a range of Honda Marine engines including models BF2DK0 and later.. Brand: Genuine Honda OEM part, ensuring factory-quality and exact match.. Series Hint: Part of the standard marine hardware components catalog.. Designed to meet OEM specifications for dimensions and durability.. Ensures seamless integration with existing hardware and engine components.. Why Choose Genuine OEM. Using