Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4540C05650 found under Bearing Roller Journal by Cryptek Technologies Inc. The National Stock Number assigned to this part is 3110013951990, 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 4540C05650.