This is a genuine RMH part number 421040800 locknut, specifically designed for use in RMH LOGIFEED systems. This essential fastening component ensures secure and reliable operation within various LOGIFEED models, including 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3400, 3600, 3800, 4000, 4200, 4400, 4600, 4800, 5000, 5200, 5400, 5600, 5800, and 6000. Weighing 0.03 kg, this locknut is a critical component for maintaining the integrity and performance of your RMH feed mixer equipment.