Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VD74HC4518 found under Microcircuit Digita by Wayne Kerr Electronics Inc. The National Stock Number assigned to this part is 5962014983459, 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 VD74HC4518.