Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IXU-4000 found under Parts Kit Seal Replacement Mecha by Duramax Inc. The National Stock Number assigned to this part is 2590016682941, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like IXU-4000.