Description
The 0519123-4 is a genuine Textron Aviation ext styl 172s option 1 supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It fits the Skyhawk. It carries an export classification of ECCN 9A991.
Because the 0519123-4 is an original-equipment (OEM) part sourced directly from Textron Aviation, it matches the exact specification and placement called out in the aircraft's type design and maintenance data — assurance a generic substitute cannot offer.
Because the Cessna Skyhawk aircraft share extensive structure and hardware, a single part like this is often common across several variants.
As a factory-supplied item for a type-certificated aircraft, this part is defined by the manufacturer's specification and applicability data. Using the factory part number preserves configuration control, so the airframe stays consistent with its approved type design and the work is straightforward to sign off at inspection.
On a certificated airframe, part provenance matters as much as the part itself; genuine factory sourcing settles that question up front. Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application.
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. The Cessna 172 Skyhawk is the most-produced aircraft in history, with more than 44,000 built since 1956, and remains in production under Textron Aviation.
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