The McCormick 3662764M1 is a genuine OEM flat washer designed for secure fastening in agricultural and industrial machinery. This durable washer features an inner diameter of 17.5 mm, an outer diameter of 28 mm, and a thickness of 2.5 mm, ensuring proper fit and function. It is a direct replacement part, also cross-referenced as Massey Ferguson 3662764M1 and Landini 3662764M1, suitable for various McCormick, Massey Ferguson, and Landini equipment applications.