Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W666000-4-0104 found under Hose Assembly Nonme by Eaton Corporation. The National Stock Number assigned to this part is 4720011046878, 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 W666000-4-0104.