Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18659FX26U found under Hose Preformed by Oshkosh Corporation. The National Stock Number assigned to this part is 4720008878812, 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 18659FX26U.