The McCormick 3539862M1 is an authentic OEM washer, precision-engineered for various McCormick agricultural machinery, including CX, MC, and XTX series tractors. This critical component ensures secure fastening and proper spacing within assemblies, contributing to the longevity and reliable operation of your equipment. With an outer diameter of approximately 20 mm, an inner diameter of 10.5 mm, and a thickness of 1.5 mm, this washer meets strict manufacturing standards for optimal performance.