Description
The MS21141U0502 is a genuine Textron Aviation fastener — a fastening or retaining hardware item used in the airframe. It carries an export classification of ECCN 9A991.
Aircraft hardware is called out to a specific specification for each location; an off-the-shelf equivalent is rarely acceptable. Because interchangeability rules can apply, confirm the exact applicable part for your configuration in the IPC before installation.
The factory part is built to the manufacturer's material and dimensional specification, so it installs as designed without the surprises a generic equivalent can bring. Confirm this part's applicability to your specific aircraft, serial number, and modification status against the approved parts data before you install it.
For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for. Choosing the genuine article over an unapproved part keeps mechanics' sign-offs clean and the aircraft's configuration exactly as certificated.
Genuine factory parts carry the documentation and traceability that maintenance and airworthiness records depend on — assurance a look-alike substitute cannot provide. Sourcing the OEM part protects the airframe's configuration and keeps its service history consistent, which matters for both airworthiness and resale value.
As the maker behind the Cessna Citation, Beechcraft King Air, Bonanza, and more, Textron Aviation supports this part through its global factory-parts network from Wichita, Kansas.
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