Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 487790-421 found under Server Automatic Data Processing by Hewlett Packard Co. The National Stock Number assigned to this part is 7035015895363, and the Federal Supply Class is 7035 Adp Support Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 487790-421.