Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S58040 found under Seal Exhaust Pipe by Hdt Expeditionary Systems Inc. The National Stock Number assigned to this part is 5330006791449, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S58040.