856A1135G02 is a precision aerospace fixture compliant with AS9100D quality standards and FAA/EASA regulations, dedicated to aircraft engine core component maintenance.It serves as a high-precision engine shaft positioning fixture, specialized in securing and aligning engine rotor shafts during MRO disassembly, inspection, repair and reassembly. It ensures strict concentricity and axial positioning accuracy, avoiding shaft misalignment that causes rotor imbalance, abnormal vibration, bearing wear and seal failure during high-speed rotation.Made of high-strength heat-resistant alloy steel, it resists high temperature and deformation, working stably at -55℃ to 340℃. Weighing 1.3kg, it features a secure locking mechanism and precise locating structure for reliable clamping, enabling efficient maintenance operation. It is a vital tool to guarantee engine rotor assembly precision and overall engine operational safety and stability.