Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CD74HCT259E found under Integrated Circuit by Texas Instruments Incorporated. The National Stock Number assigned to this part is 1680015374660, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CD74HCT259E.