Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1678599-2 found under Nozzle Removable Mi by Raytheon Service Co Logistics Su. The National Stock Number assigned to this part is 2910001155088, and the Federal Supply Class is 2910 Engine Fuel System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1678599-2.