Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D49620 found under Hose by Koehring Co. The National Stock Number assigned to this part is 4720012015181, 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 D49620.