Description
The MS21251-B3S is a genuine Textron Aviation turnbuckle body locking supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It is fitted to the Citation CJ1 or CJ1+, Citation CJ2 or CJ2+, Citation CJ3, CJ3+, CJ3+ Gen 2, CJ3 Gen 3, Citation CJ4, CJ4 Gen 2, CJ4 Gen 3, Citation Excel, XLS, XLS+, XLS Gen 2, Citation III, VI or VII, Citation Latitude, Citation M2, M2 Gen 2, M2 Gen 3, Citation Mustang, and Citation Sovereign or Sovereign+, among other compatible variants. It carries an export classification of ECCN EAR99, weighs 0.03 lbs, and measures 2.15 (L) x 0.3 (W) x 0.35 (H) in.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21251-B3S 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, Beechcraft King Air, and Cessna SkyCourier aircraft, reflecting how much structure and hardware these models have in common.
This is a cataloged factory part whose form, fit, and function are established by the manufacturer's approved data.
These aircraft are built by Textron Aviation, which unites Cessna (founded 1927) and Beechcraft (founded 1932) under one Wichita, Kansas company since 2014. The Citation family is the best-selling line of business jets ever built, and more than 7,500 have been delivered worldwide.
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