Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XND16X59 found under Valve Flow Control by General Electric Co. The National Stock Number assigned to this part is 4820003458593, 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 XND16X59.