Description
The MS21141U0506 is a genuine Textron Aviation fastener used to fasten, secure, or retain components during assembly of the airframe.
Strength grade and finish define aircraft hardware, so matching the specified part keeps the joint as designed. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for.
Because a single part number can be superseded or vary by effectivity, confirm applicability against your aircraft's Illustrated Parts Catalog (IPC) and serial-number effectivity before ordering. Sourcing the OEM part protects the airframe's configuration and keeps its service history consistent, which matters for both airworthiness and resale value.
Check effectivity and supersession status for your serial number so you order the currently applicable part. 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.
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.
Textron Aviation traces its roots to Cessna, founded in Wichita, Kansas in 1927, and Beechcraft, founded there in 1932 — two of general aviation's most storied names, united under one company since 2014.
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