Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30N31 found under Ankoprene Strip by Anchor Packing Co The. The National Stock Number assigned to this part is 5330004843450, 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 30N31.