The disc, code 100100, is a versatile precision component used within various mechanical and fluid-handling systems of the MAN L21/31 engine. Depending on the application, the disc may function as a support element, spacer, sealing surface, or flow-control component within rotating or stationary assemblies. Designed for dimensional accuracy and long-lasting durability, it is manufactured from wear-resistant materials capable of withstanding pressure, vibration, and thermal stresses under demanding operating conditions. Its reliable performance helps maintain system stability, supports efficient engine operation, and contributes to the overall reliability and service life of critical engine components.