Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A31U29725-1 found under Microcircuit Memory by Lex Electronics Corp. The National Stock Number assigned to this part is 5962013824970, 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 A31U29725-1.