Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ND8020 found under Expansion Joint Pipe by Oil States Industries Inc. The National Stock Number assigned to this part is 4730012172829, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ND8020.