Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F124723 REV B ITEM NO.7 found under Bearing Sleeve by Oldenburg Group Incorporated. The National Stock Number assigned to this part is 3120016086306, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F124723 REV B ITEM NO.7.