Rubber seal 2C91312G02

O-ringcircularfor aircraft

2C91312G02 is a precision-manufactured aerospace engine low-pressure turbine (LPT) disk axial seal, compliant with AS9100D quality standards and FAA/EASA regulations, designed for CFM56 series turbofan engines. It seals the axial gap between the LPT disk and the turbine rear casing, blocking the low-temperature exhaust gas from entering the disk's axial cavity, which is critical for preventing the accumulation of exhaust contaminants, reducing the corrosion and wear of the disk's mating surface, and maintaining the structural stability of the LPT disk during long-term operation. Made from a corrosion-resistant, wear-resistant nickel-based superalloy, it withstands operating temperatures up to 890°C and continuous exhaust gas scouring. Weighing 0.13kg with a precision-machined sealing surface, it enables fast installation and tightness verification during LPT MRO overhauls. FAA Part 25 certified, it is a key component for LPT operational reliability.