Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U100028-000 found under Microcircuit Digital by L3 Communications Corp. The National Stock Number assigned to this part is 5962014208893, 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 U100028-000.