Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 448878 found under Capacitor Variable Air Dielectri by Keystone Intl Inc. The National Stock Number assigned to this part is 5910009303873, 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 448878.