HU35254-2 is a precision-manufactured aerospace engine high-pressure turbine (HPT) blade retainer pin, compliant with AS9100D quality standards and FAA/EASA regulations, designed for large commercial turbofan engines. It fixes the HPT rotor blades in the rotor disk, preventing blade detachment under the impact of high-temperature, high-speed combustion gas during engine operation, which is critical for maintaining the integrity of the HPT structure, avoiding catastrophic engine failure, and ensuring flight safety.

Made from high-strength, heat-resistant nickel-based superalloy, it withstands operating temperatures up to 1500°C and continuous mechanical stress. Weighing 0.06kg with a precision-threaded structure, it allows for fast installation and locking verification during HPT MRO overhauls. FAA Part 25 certified, it is a key component for HPT operational safety.