Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5018HR4 158 UE-1004 found under Gear Assembly Speed by Emerson Electric Co. The National Stock Number assigned to this part is 3010013110199, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5018HR4 158 UE-1004.