The reference numbers 5113-5112, 5141 and 5151 features a steel wear plate. The reference number 5120-5121 showcases a brass wear plate and reference number 5124-5125 has a brass wear plate with inserts. The 5126 shows a Type VDI wear plate. Reference numbers 5144, 5154, 5164 and 5184 also have brass wear plate with inserts. Reference numbers 5134 and 5194 have cast iron wear plates with inserts. The reference number 5140 has a spacer for wear plate. For Electropneumatic plates refer to numbers 5250, 5251 and 5252.