Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LM12749 found under Cone And Rollers Tapered Roller by Fleck Bearing Co. The National Stock Number assigned to this part is 3110007630373, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LM12749.