O-RING

The 45C3317-217 is a genuine Textron Aviation ring that seals a joint or opening against air, fluid, or contamination. A seal or gasket keeps a joint tight against its service conditions; only the specified part reliably maintains that integrity. Verify the part number and any supersessions against the manufacturer's parts catalog for your model and serial before ordering. Because this is a component for a type-certificated aircraft, using the manufacturer's part keeps the installation within approved configuration and simplifies compliance. Because interchangeability rules can apply, confirm the exact applicable part for your configuration in the IPC before installation. 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. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for. On a certificated airframe, part provenance matters as much as the part itself; genuine factory sourcing settles that question up front. Fitting the correct factory part the first time avoids the rework, removal, and re-inspection that an incorrect or unapproved part can trigger. Formed in 2014, Textron Aviation unites the Cessna, Beechcraft, and Hawker names and provides genuine factory-parts support across the combined fleet. Start a quote for 45C3317-217 on Flying411 to confirm cost, condition, and delivery.