Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C55MU found under Packing Preformed by Skf Usa Inc. The National Stock Number assigned to this part is 5330008725005, 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 C55MU.