Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WINDOWS 2003 R2 STANDARD found under Software Kit by Microsoft Corporation. The National Stock Number assigned to this part is 7030015766340, and the Federal Supply Class is 7030 Adp Software. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WINDOWS 2003 R2 STANDARD.