Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C437ARD640 found under Capacitor Fixed Electrolytic by Amperex Electronic Corp. The National Stock Number assigned to this part is 5910001721631, and the Federal Supply Class is 5910 Capacitors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C437ARD640.