Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F420C-1-7 found under Magnet Permanent by Electric Speed Indicator Co. The National Stock Number assigned to this part is 5999014874197, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F420C-1-7.