HIX5002 is a precision-manufactured aerospace engine accessory gearbox sealing assembly, compliant with AS9100D quality standards and FAA/EASA regulations, developed for large commercial turbofan engines. It is applied to multiple connection points of the accessory gearbox, forming a sealed barrier to avoid lubricating oil leakage and the entry of external contaminants, which is critical for maintaining the internal cleanliness of the gearbox, ensuring the smooth operation of gears and bearings, and preventing premature wear or sudden failure of the accessory drive system.

Made from high-performance heat-resistant and oil-resistant polymer composites, it can withstand operating temperatures up to 175°C and long-term surface friction. Weighing 0.042kg, it has a precision-machined matching structure for quick installation and tightness inspection during gearbox MRO. FAA Part 25 certified, it is a key component for the stable operation of the engine accessory system.