Size (CM): 170*170*210

Weright (KG): 905

856A2540G04 is a precision-forged aerospace engine high-pressure turbine (HPT) shaft, compliant with AS9100D quality standards and FAA/EASA regulations, optimized for CFM56 and IAE V2500 turbofan engines. It serves as the core power transmission component of the engine’s hot section, transferring rotational torque from the HPT rotor to the high-pressure compressor (HPC), ensuring synchronized operation across idle, climb, cruise, and takeoff phases.

Crafted from a high-strength nickel-based superalloy with a thermal barrier coating, it withstands operating temperatures up to 950°C, extreme centrifugal forces, and thermal fatigue. Weighing 3.2kg with a precision spline interface, it enables fast assembly and disassembly during hot-section MRO overhauls. FAA Part 25 certified, it is a safety-critical component for engine power integrity and operational durability.