Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99-04-5289 found under Bearing Sleeve by Supacat Pty Ltd. The National Stock Number assigned to this part is 3120015670788, 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 99-04-5289.