Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KITLR19 CB4341 A0409010560OXY found under Repair Kit Valve by Circor Aerospace Inc. The National Stock Number assigned to this part is 4820014546052, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KITLR19 CB4341 A0409010560OXY.