Description
The MS21920-26 is a genuine Textron Aviation clamp — a fastening or retaining hardware item used in the airframe. It is fitted to the Citation CJ4, CJ4 Gen 2, CJ4 Gen 3. It carries an export classification of ECCN EAR99, weighs 0.11 pounds, and measures 3.45 (L) x 3.1 (W) x 0.7 (H) Inches.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21920-26 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 Cessna Citation aircraft, reflecting how much structure and hardware these models have in common.
Strength grade and finish define aircraft hardware, so matching the specified part keeps the joint as designed. 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.
The Cessna name is among the most recognized in aviation — founded in Wichita, Kansas in 1927 and part of Textron since 1992, today a cornerstone of Textron Aviation. Cessna's Citation line, launched with the Model 500 in the early 1970s, grew into the best-selling business-jet family in the world, spanning today from the light M2 to the super-midsize Longitude.
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