Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W520BY104F found under Capacitor Fixed Cer by Sfe Technologies. The National Stock Number assigned to this part is 5910012738777, 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 W520BY104F.