Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4401B71-1 found under Clamp Hose by Sundstrand International Corporation. The National Stock Number assigned to this part is 4730011482778, 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 4401B71-1.