Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D71649 found under Hose by Koehring Co. The National Stock Number assigned to this part is 4720004051823, 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 D71649.