O-RING

The 45C3317-013 is a genuine Textron Aviation ring used to keep a joint or pass-through tight. Material and dimensions make a seal work; the correct factory part is what keeps the joint from leaking in service. An unapproved or surplus substitute can introduce fit, material, or paperwork problems that surface at the next inspection; the genuine part avoids that risk. Applicability should always be confirmed against the aircraft's IPC and effectivity records prior to fitting the part. Fitting the correct factory part the first time avoids the rework, removal, and re-inspection that an incorrect or unapproved part can trigger. As configurations differ across serials and modifications, validate this part against your aircraft's approved data before purchase. Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application. OEM parts arrive to the specification the type design was certified against, preserving both airworthiness and the airframe's documented configuration. 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. Textron Aviation — parent of the Cessna, Beechcraft, and Hawker lines — supports this part through its genuine factory parts network. Request pricing and availability for 45C3317-013 on Flying411.