Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NW5309PC6T08 found under Cap Lead Ion Exchanger by National Annealing Box Co. The National Stock Number assigned to this part is 4470004091705, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NW5309PC6T08.