Here at ASAP AOG, we can stock and procure any aircraft propeller parts including B5A10020S, Hc-B5ma-2/M9128nsk/D-5497-4 you need, and other Aircraft Parts from Hartzell Propeller Inc. We have an NSN catalog of over 6 billion parts sourced from certified and responsible manufacturers. Whether you’re looking for parts that are new, old, or obsolete, our team can supply them to you in a time that fits with your deadlines.