Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21463 found under Bearing Roller Cylindrical by Crane Pumps And Systems Inc. The National Stock Number assigned to this part is 3110012119907, 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 21463.