Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4188815 found under Packing Preformed by Aerofab Company Inc Jules Bols. The National Stock Number assigned to this part is 5330010608760, 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 4188815.