Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LM1311B found under Bearing Roller Cylindrical by Regal Beloit Corp. The National Stock Number assigned to this part is 3110008338658, 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 LM1311B.