Chain Assembly Smart Part Numbers           (1) (2) (3) (4)(5)   AU 165 2 SC 04 34 (1)  Chain pitch in inches 165 = 1.65 inches (2)  Pitch spacing (2P or 4P) (3)  Configuration Codes CT = Cup Teeth SC = Shark Teeth - Cup Teeth Combo SB = Full Bolt-On Shark Teeth SW = Welded Shark Teeth XS = Expandable Shark Teeth RC = Mining Bits - Cup Teeth Combo RB = Full Bolt-On Mining Bits HP = Heavy-Duty H-Plate (4)  Digging width in inches (04 = 4 inches) (5)  Number of stations

Bare Chain Smart Part Numbers       (1) (2) (3) AU 165 B2 30 (1)  Chain pitch in inches (165 = 1.65 inches) (2)  Configuration B4 = 4-pitch spacing chain B2 = 2-pitch spacing heavy-duty, ABF (anti back flex) chain BL = Low profile, 2-pitch ABF for welded assemblies (3)  Number of stations