98S71003002002 is a precision-manufactured aerospace engine high-pressure compressor (HPC) disk component, compliant with AS9100D quality standards and FAA/EASA regulations, designed for large commercial turbofan engines. It is the core load-bearing and mounting base for HPC rotor blades, fixing the blades in position and driving their high-speed rotation to compress incoming air, which is critical for maintaining the stable operation of the HPC, ensuring the continuous output of high-pressure air required for the combustion chamber, and avoiding structural failure caused by centrifugal force.

Made from high-strength, heat-resistant nickel-based superalloy, it withstands operating temperatures up to 820°C and extreme centrifugal force during high-speed rotation. Weighing 2.7kg with a precision-machined mounting structure, it allows for fast blade installation and flaw detection during HPC MRO overhauls. FAA Part 25 certified, it is a key component for HPC operational safety.