Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 259337 found under Ferrule Brazing Tube Fitting by Simon Paul Boiler And Welding Co. The National Stock Number assigned to this part is 4730005417869, 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 259337.