Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2B1-593 found under Roller Bearing by Oldenburg Group Incorporated. The National Stock Number assigned to this part is 3110011802343, 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 2B1-593.