Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CTO1563 4BGF found under Backshell Electrical Connector by R Kern Engineering And Mfg. The National Stock Number assigned to this part is 5935012612253, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CTO1563 4BGF.