Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DI-3+DB-3S found under Alarm Smoke Automatic by Cerberus Pyrotronics Inc. The National Stock Number assigned to this part is 6350013413578, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DI-3+DB-3S.