Description
The MS21921-10D is a genuine Textron Aviation nut used to fasten, secure, or retain components during assembly of the airframe. It is applicable to the SkyCourier. It carries an export classification of ECCN EAR99, weighs 0.03 lbs, and measures 1.15 (L) x 1.01 (W) x 0.98 (H) in.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21921-10D 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.
Because the Cessna SkyCourier aircraft share extensive structure and hardware, a single part like this is often common across several variants.
Strength grade and finish define aircraft hardware, so matching the specified part keeps the joint as designed. Fitting the correct factory part the first time avoids the rework, removal, and re-inspection that an incorrect or unapproved part can trigger.
Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application. OEM parts arrive to the specification the type design was certified against, preserving both airworthiness and the airframe's documented configuration.
Cessna traces to the company Clyde Cessna founded in Wichita, Kansas in 1927; Textron Inc. acquired it in 1992, and since 2014 it has anchored Textron Aviation alongside Beechcraft and Hawker. The twin-engine Cessna SkyCourier, certified in 2022, is Textron Aviation's newest utility aircraft.
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