Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XE9666-RF found under Searchlight by Carlisle And Finch Company The. The National Stock Number assigned to this part is 6220013315923, and the Federal Supply Class is 6220 Electric Vehicular Lights And Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XE9666-RF.