Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54HCT244D found under Microcircuit Digital by Supertex. The National Stock Number assigned to this part is 5962011781076, 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 54HCT244D.