Comparison : Item # 6NBK919YZP, RBC Airframe Bearing - NBK Series/SAE AS24464
Item # 7NBK1021YZP, RBC Airframe Bearing - NBK Series/SAE AS24464
Item # 8NBK1224YZP, RBC Airframe Bearing - NBK Series/SAE AS24464
Item # 10NBK1628YZP, RBC Airframe Bearing - NBK Series/SAE AS24464
Item # 12NBK1830YZP, RBC Airframe Bearing - NBK Series/SAE AS24464