The Fiatagri K261829 is a genuine OEM washer designed for use in a wide range of Fiatagri agricultural machinery, including numerous tractor models from the 45-66 to 180-90 series and F, L, M series. This essential component ensures proper load distribution, prevents loosening of fasteners, and maintains correct spacing within assemblies. With an inner diameter of 26.5 mm, an outer diameter of 40 mm, and a thickness of 3 mm, it is engineered to meet original equipment specifications for durability and precise fit.