Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 440274-131280 found under Tee Tube by Wells Technology Inc. The National Stock Number assigned to this part is 4730016040757, 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 440274-131280.