Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AN844-20D found under Elbow Pipe To Hose by Aeronautical Standards Group. The National Stock Number assigned to this part is 4730002771987, 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 AN844-20D.