Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 590-6501-K00-00 found under Fan Assembly Aircra by Tracewell Systems Inc. The National Stock Number assigned to this part is 6625015691277, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 590-6501-K00-00.