This is a genuine JCB washer, part number 02961500 (also known as 02/961500), designed for use in a wide range of JCB agricultural and construction machinery. It features an inner diameter of 16.5 mm, an outer diameter of 28 mm, and a thickness of 2.5 mm, ensuring proper fit and function in critical applications. This OEM component is essential for maintaining the integrity and performance of JCB equipment.