Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CFSP6389 found under Seal Assembly Plain by John Crane Inc. The National Stock Number assigned to this part is 2815009759552, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CFSP6389.