Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 168629-1 ITEM 18 found under Bearing Roller by Lowe Charles Co The. The National Stock Number assigned to this part is 3110011591815, 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 168629-1 ITEM 18.