Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CS-4730-0017 found under Reducer Tube by Dla Aviation. The National Stock Number assigned to this part is 4730000377850, 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 CS-4730-0017.