Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20030-4 found under Tape Electronic Data Processing by Maxell Corporation Of America. The National Stock Number assigned to this part is 7045014918898, and the Federal Supply Class is 7045 Adp Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20030-4.