Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X12-02904 found under Computer Rackmount by Cooper Notification Inc. The National Stock Number assigned to this part is 7021015927770, and the Federal Supply Class is 7021 Adp Central Processing Unit Cpu Computer Digital. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X12-02904.