1/2" x 15T_Nyloc Nut

Listed on the following equipment:
Sole - 2009-2010 Series - WS77 - (577888)
Sole - 2009-2010 Series - WTT8 - (588888)
Spirit - X Series - XT685 - (685810)
Spirit - X Series Motorized Treadmill - XT675

* Images may not be identical to part.