GASKET

The 4026 is a genuine Textron Aviation gasket used to keep a joint or pass-through tight. It carries an export classification of ECCN 9A991. Sealing components are sized and compounded for the fluids, temperatures, and pressures they contain, so the exact specified part maintains a tight joint. Choosing the genuine article over an unapproved part keeps mechanics' sign-offs clean and the aircraft's configuration exactly as certificated. Confirm fitment against your airframe's parts data — effectivity, modifications, and supersessions all affect which number applies. Sourcing the OEM part protects the airframe's configuration and keeps its service history consistent, which matters for both airworthiness and resale value. Verify the part number and any supersessions against the manufacturer's parts catalog for your model and serial before ordering. 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. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for. The value of an OEM part is as much in its paperwork and pedigree as its metal — both of which an aircraft's records require. The company behind this part, Textron Aviation, builds and sustains the Cessna Citation, Beechcraft King Air, Bonanza, and Baron families from its home in Wichita, Kansas. Flying411 can help you source 4026 — request a quote to get started.