Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QB400005-4 found under Capacitor Variable Glass Dielect by Honeywell Intl Inc. The National Stock Number assigned to this part is 5910007681809, 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 QB400005-4.