Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4109031 found under Bearingballannular by Flir Surveillance Inc. The National Stock Number assigned to this part is 3110016766676, 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 4109031.