Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B300 265 46 found under Elbow Tube by Environmental Technology Inc. The National Stock Number assigned to this part is 4730015884348, 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 B300 265 46.