Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 15-0S-316L ITEM found under Packing Material by Stockham Valves And Fittings Inc. The National Stock Number assigned to this part is 5330006183222, 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 15-0S-316L ITEM.