Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 51598ITEM41 found under Retainer Packing by 3M Company. The National Stock Number assigned to this part is 5330004803386, 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 51598ITEM41.