The Case-IH 87613305 is a genuine OEM lock washer designed to prevent loosening of bolted joints due to vibration and torque. This critical fastening component ensures the integrity and safety of various Case-IH and New Holland agricultural and construction equipment. With an inner diameter of 12.7 mm, an outer diameter of 20.6 mm, and a thickness of 2.5 mm, this high-quality washer provides reliable performance and a secure fit for compatible machinery.