Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U2-05-0022 found under Bearing Pinion by Marco Ophthalmic Inc. The National Stock Number assigned to this part is 3110014733751, 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 U2-05-0022.