Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SAE J530 6-4 130137B found under Reducer Pipe by Sae International. The National Stock Number assigned to this part is 4730008784199, 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 SAE J530 6-4 130137B.