Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C0503105500 found under Hose Nonmetallic by Cummins Inc. The National Stock Number assigned to this part is 4720012122604, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C0503105500.