Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F052503 REV C ITEM 18 found under Bearing Washer Thrust by Oldenburg Group Incorporated. The National Stock Number assigned to this part is 3120015479900, 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 F052503 REV C ITEM 18.