Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 384028 found under Spacer Turbine Shaf by O A Inc. The National Stock Number assigned to this part is 3120007659924, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 384028.