BARREL

The MS21251B3L is a genuine Textron Aviation barrel supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It is applicable to the 1900 Airliner, 1900C Airliner, 1900D Airliner, Citation CJ1 or CJ1+, and Citation Excel, XLS, XLS+, XLS Gen 2. It carries an export classification of ECCN EAR99. Because the MS21251B3L is an original-equipment (OEM) part sourced directly from Textron Aviation, it matches the exact specification and placement called out in the aircraft's type design and maintenance data — assurance a generic substitute cannot offer. Across the Beechcraft 1900 and Cessna Citation fleet, correctly identified factory parts like this keep every airframe consistent and configuration-correct. Supplied as a defined part in the manufacturer's catalog, its exact role is set by the aircraft's parts and maintenance data. On a certificated airframe, part provenance matters as much as the part itself; genuine factory sourcing settles that question up front. Because aircraft parts are governed by strict airworthiness and traceability rules, fitting the OEM part rather than an unapproved equivalent keeps the installation eligible and the aircraft's records clean. These aircraft are built by Textron Aviation, which unites Cessna (founded 1927) and Beechcraft (founded 1932) under one Wichita, Kansas company since 2014. Derived from the King Air, the 19-passenger Beechcraft 1900 airliner (built 1982–2002) remains in service with regional and cargo operators. Request a quote for MS21251B3L, or browse more Beechcraft 1900 and Cessna Citation parts on Flying411.