UNION

The MS21902-4T is a genuine Textron Aviation union supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It is applicable to the Citation CJ4, CJ4 Gen 2, CJ4 Gen 3, Citation Latitude, Citation Longitude, Citation Sovereign or Sovereign+, and Premier Model 390. It carries an export classification of ECCN EAR99, weighs 0.05 pounds, and measures 0.65 (L) x 0.7 (W) x 1.15 (H) Inches. Supplied directly by Textron Aviation as an original-equipment (OEM) part, the MS21902-4T meets the manufacturer's specification and keeps the aircraft configuration-correct, with clean traceability in the maintenance records. Parts like this are shared across the Cessna Citation and Beechcraft Premier aircraft, reflecting how much structure and hardware these models have in common. Supplied as a defined part in the manufacturer's catalog, its exact role is set by the aircraft's parts and maintenance data. OEM parts arrive to the specification the type design was certified against, preserving both airworthiness and the airframe's documented configuration. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for. Both the Cessna and Beechcraft lines are supported today by Textron Aviation, formed in 2014 to unite the two historic Wichita manufacturers with 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 MS21902-4T or browse more Cessna Citation and Beechcraft Premier parts on Flying411.