Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RKD5020D found under Tool Swaging Bearing by Jamaica Bearings Co Inc. The National Stock Number assigned to this part is 5120015205958, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RKD5020D.