Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 663-1-5-400 found under by A S C Information Technology. The National Stock Number assigned to this part is 5910016608967, 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 663-1-5-400.