Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS74SL2281 found under Microcircuit Digital by Unisys Corporation. The National Stock Number assigned to this part is 5962002406144, 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 SS74SL2281.