The JCB 14200015Z is a genuine M30 plain washer, an authentic OEM component designed for secure fastening in a wide range of JCB agricultural, construction, and industrial machinery. This essential fastener ensures proper load distribution and prevents loosening of bolted joints, thereby maintaining the integrity and performance of your equipment. With an inner diameter of 31 mm, an outer diameter of 56 mm, and a thickness of 4 mm, it is a critical component for reliable machine operation.