O-RING

The 4197-1 is a genuine Textron Aviation ring that seals a joint or opening against air, fluid, or contamination. It carries an export classification of ECCN 9A991. Material and dimensions make a seal work; the correct factory part is what keeps the joint from leaking in service. Cross-check the part number against your maintenance and parts documentation to confirm fit and current effectivity for your airframe. Traceable OEM hardware keeps an aircraft's maintenance records defensible at annual, pre-purchase, and pre-buy inspections. Part numbers can supersede over time, so verify the current applicable number for your airframe's serial and configuration before installation. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for. Fitting the correct factory part the first time avoids the rework, removal, and re-inspection that an incorrect or unapproved part can trigger. An unapproved or surplus substitute can introduce fit, material, or paperwork problems that surface at the next inspection; the genuine part avoids that risk. Because aircraft parts are governed by strict airworthiness and traceability rules, fitting the OEM part rather than an unapproved equivalent keeps the installation eligible and the aircraft's records clean. Textron Aviation carries forward the legacies of Cessna and Beechcraft — two Wichita, Kansas firms whose aircraft have defined general aviation for the better part of a century. Get a quote for 4197-1 on Flying411 to see availability and condition options.