Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18740-20800 found under Nut Tube Coupling Reducing by Agilent Technologies. The National Stock Number assigned to this part is 4730014682901, 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 18740-20800.