Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5 040110B found under Inverted Nut Tube Coupling by Society Of Automotive Engineers Inc. The National Stock Number assigned to this part is 4730000142427, 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 5 040110B.