This genuine McCormick 3546910M2 washer is a critical component designed for securing parts in agricultural and construction machinery. Manufactured to OEM specifications, it ensures proper fit and reliable performance across a wide range of equipment. With an inner diameter of 18.5 mm, an outer diameter of 30 mm, and a thickness of 2.5 mm, this washer provides essential support and load distribution for Massey Ferguson, McCormick, Landini, Fendt, and Valtra machinery.