Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 541 20 49-83 found under Tee Pipe by United Rentals North America Inc. The National Stock Number assigned to this part is 4730016224690, 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 541 20 49-83.