ND Spring cage

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Conversion kits are available to convert many popular functions.Conversion kits manufactured on or after January 30, 2017 will have the new enhanced ND spring cage, lever, plunger and buttonCo...
For all available ND Series Conversion Kit part numbers, click here.
ND -series locks manufactured on or after January 30, 2017 use the following spring cages:Outside - N523-218 - For ALL cylinder options except for JD-YA6, JD-YA7 and JD-MEDInside - N523-222 -...
ND-series locks manufactured before January 30, 2017 used the following spring cages:
As of June 2019, all ND, NDe, AD CYL and CO CYL levers are the same.
Between January 30, 2017  June of 2019, the AD and CO cylindrical lock levers were incompatible because of the ND / NDe lever and spring cage design change in January of 2017.Prior to January ...