Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4500 found under Copying Machine Direct Electrost by Xerox Corporation. The National Stock Number assigned to this part is 3610011522861, and the Federal Supply Class is 3610 Printing Duplicating And Bookbinding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4500.