Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SC3814 found under Electron Tube by Sylvania Electric Products Inc. The National Stock Number assigned to this part is 5960009053822, and the Federal Supply Class is 5960 Electron Tubes And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SC3814.