Description
The MS21231-5 is a genuine Textron Aviation bearing — a low-friction pivot or rotational support in an assembly. It is applicable to the Premier Model 390. It carries an export classification of ECCN 9A991.
Supplied directly by Textron Aviation as an original-equipment (OEM) part, the MS21231-5 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 Beechcraft Premier aircraft, reflecting how much structure and hardware these models have in common.
Fit and load rating define a bearing's job, so matching the specified part protects both function and service life. An unapproved or surplus substitute can introduce fit, material, or paperwork problems that surface at the next inspection; the genuine part avoids that risk.
Genuine sourcing means the part matches the drawing exactly, so fit and function are known quantities rather than a gamble at installation. Because this is a component for a type-certificated aircraft, using the manufacturer's part keeps the installation within approved configuration and simplifies compliance.
Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application.
Built by Beechcraft — the Wichita, Kansas manufacturer founded in 1932 and part of Textron Aviation since 2014 — this part carries a name long associated with rugged, capable aircraft. The Beechcraft Premier I was a clean-sheet, composite-fuselage light jet — the first jet Beechcraft designed in-house — supported today through Textron Aviation.
Request a quote for MS21231-5 or browse more Beechcraft Premier parts on Flying411.
