IAE1R18214 is a precision-manufactured aerospace high-pressure turbine (HPT) shaft, engineered to AS9100D standards and FAA/EASA regulations, tailored for IAE V2500 turbofan engines powering Airbus A320 family aircraft. It transmits rotational torque from the HPT to the high-pressure compressor (HPC), sustaining stable engine core operation under extreme thermal loads (up to 1,050°C) and centrifugal forces during takeoff, climb, and cruise phases.

Crafted from heat-resistant nickel-based superalloy with a nitrided surface for wear resistance, it features a precision-machined spline interface for secure component coupling. Weighing 4.2kg, it supports efficient disassembly and replacement during hot-section MRO overhauls. FAA Part 25 compliant, it is a safety-critical core component ensuring engine power transmission integrity and operational reliability.