Sentry Aerospares (formerly known as Aerospares 2000 and Sentry Aerospace) is a supplier of aircraft rotables spare parts. The company offers component sales, exchange and loans, inventory acquisitions, and repair management services. It specializes in critical spare parts, including avionics, fire extinguishers, ram air turbines, radomes and actuation, etc. Sentry Aerospares was formed as a result of a merger between Aerospares 2000 and Sentry Aerospace.