The Case-IH 402574R1 is an original equipment manufacturer (OEM) Belleville washer, also known as a disc spring. This critical component ensures proper tension and load distribution in various applications across a wide range of Case-IH agricultural and construction equipment. It is designed for durability and precise fitment, featuring an outer diameter of 44.5 mm, an inner diameter of 22.5 mm, and a thickness of 2.5 mm. This washer is essential for maintaining optimal performance in numerous Case-IH tractors, cotton pickers, crawlers, engines, loaders, and windrowers.