956A1006 is a precision-manufactured aerospace engine low-pressure compressor (LPC) rotor disk seal ring, compliant with AS9100D quality standards and FAA/EASA regulations, designed for CFM56 series turbofan engines. It seals the gap between the LPC rotor disk and the engine casing, reducing the reverse leakage of compressed air, which is critical for maintaining the pressure difference of the LPC, optimizing the air compression efficiency, and ensuring the engine can provide stable thrust output during flight.

Made from heat-resistant, wear-resistant nickel-based superalloy, it withstands operating temperatures up to 780°C and continuous high-speed air scouring. Weighing 0.15kg with a precision-machined sealing surface, it allows for fast installation and tightness verification during LPC MRO overhauls. FAA Part 25 certified, it is a key component for LPC operational reliability.