Here at ASAP AOG, we can stock and procure any aircraft propeller parts including 3H2071, Modular Brush Block Assembly 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.