Locknut; 12 Threads per Inch; 5.193" Outside Diameter; 0.76" Nominal Thickness; 3.918-12 Thread Size; 3.864" Thread Pitch Diameter Min; 3.871" Thread Pitch Diameter Max; W-20 Lockwasher Part Number; UNS Thread

12 Threads per Inch; 5-3/16" Outside Diameter; 0.76" Nominal Thickness; 3.918-12 Thread Size; 3.857" Thread Pitch Diameter Min; 3.864" Thread Pitch Diameter Max; TW-120 Lockwasher Part Number; NS Thread