Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P4 2.8GHZ 1M 800 found under Computer Subassembly by Intel Corp. The National Stock Number assigned to this part is 7021015811010, 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 P4 2.8GHZ 1M 800.