The spray nozzle, code 100100, is a precision-engineered component used in the MAN L21/31 engine to deliver fluids in a controlled and efficient spray pattern. Commonly applied in lubrication, cooling, or cleaning systems, it ensures accurate atomization and distribution of oil, fuel, or water to critical engine areas. Designed for consistent flow performance under varying pressures and temperatures, the spray nozzle contributes to optimal thermal management and component protection. Manufactured from wear- and corrosion-resistant materials, it provides reliable long-term operation in demanding marine and industrial environments. By ensuring precise fluid delivery, the spray nozzle plays an important role in improving engine efficiency, reducing wear, and enhancing overall operational reliability.