BEARING

The MS21220-4GH is a genuine Textron Aviation bearing — a low-friction pivot or rotational support in an assembly. It is applicable to the Citation CJ1 or CJ1+, Citation CJ2 or CJ2+, and Citation CJ4, CJ4 Gen 2, CJ4 Gen 3. It carries an export classification of ECCN EAR99. Supplied directly by Textron Aviation as an original-equipment (OEM) part, the MS21220-4GH meets the manufacturer's specification and keeps the aircraft configuration-correct, with clean traceability in the maintenance records. Across the Cessna Citation fleet, correctly identified factory parts like this keep every airframe consistent and configuration-correct. Fit and load rating define a bearing's job, so matching the specified part protects both function and service life. The value of an OEM part is as much in its paperwork and pedigree as its metal — both of which an aircraft's records require. Using the factory part number preserves configuration control, so the airframe stays consistent with its approved type design and the work is straightforward to sign off at inspection. Cessna traces to the company Clyde Cessna founded in Wichita, Kansas in 1927; Textron Inc. acquired it in 1992, and since 2014 it has anchored Textron Aviation alongside Beechcraft and Hawker. Cessna's Citation line, launched with the Model 500 in the early 1970s, grew into the best-selling business-jet family in the world, spanning today from the light M2 to the super-midsize Longitude. To check availability, request a quote for MS21220-4GH or browse more Cessna Citation parts on Flying411.