Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DB99-1139 found under Microcircuit Linear by L3 Communications Dbs Microwave. The National Stock Number assigned to this part is 5962014785475, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DB99-1139.