Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S5601 found under Plug Pipe by Simmonds Precision Products Inc. The National Stock Number assigned to this part is 4730001211050, 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 S5601.