Description
The MS21318-27 is a genuine Textron Aviation screw drive round head used to fasten, secure, or retain components during assembly of the airframe. It fits the King Air C90, C90A, C90GT or E90, King Air C90GTi, and King Air C90GTx. It carries an export classification of ECCN EAR99, weighs 0.01 lbs, and measures 0.34 (L) x 0.25 (W) x 0.25 (H) in.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21318-27 is built to the aircraft maker's specification and cross-references the type design as documented in the maintenance data. Choosing the genuine part over an unapproved substitute preserves configuration control and simplifies inspection sign-offs.
Parts like this are shared across the Beechcraft King Air aircraft, reflecting how much structure and hardware these models have in common.
Aircraft hardware is called out to a specific specification for each location; an off-the-shelf equivalent is rarely acceptable. Genuine factory parts carry the documentation and traceability that maintenance and airworthiness records depend on — assurance a look-alike substitute cannot provide.
Choosing the genuine article over an unapproved part keeps mechanics' sign-offs clean and the aircraft's configuration exactly as certificated.
Beechcraft, founded in Wichita, Kansas in 1932, joined Cessna and Hawker under Textron Aviation in 2014, which today supports the worldwide Beechcraft fleet with genuine factory parts. The 90-series King Air, built from 1964 until the C90GTx concluded the line in 2021, launched what became the best-selling business turboprop family ever.
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