Description
The MS21915W8-6 is a genuine Textron Aviation bushing — a sleeve providing a bearing or protective surface at a pass-through or pivot. It is fitted to the Citation CJ4, CJ4 Gen 2, CJ4 Gen 3. It carries an export classification of ECCN EAR99, weighs 0.06 lbs, and measures 1.45 (L) x 1.15 (W) x 1 (H) in.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21915W8-6 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.
A bearing or bushing sets how a shaft or pivot moves and wears; the right part keeps that motion as designed. OEM parts arrive to the specification the type design was certified against, preserving both airworthiness and the airframe's documented configuration.
On a certificated airframe, part provenance matters as much as the part itself; genuine factory sourcing settles that question up front.
Built by Textron Aviation, whose Cessna line was founded in Wichita, Kansas in 1927 and joined Textron in 1992, this part carries one of general aviation's most storied names. 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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