Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JSFF20W060406 found under Tee Tube by Nelson Aero Space Inc. The National Stock Number assigned to this part is 4730016660050, 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 JSFF20W060406.