older co spring cage parts

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The old D series springcage part numbers are as follows: C303-035 - Inside Springcage C303-036 - Outside Springcage These parts are no longer available.
The springcage part number is L283-040.
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:
In 2002 the Schlage AL-Series underwent a design change that affected the spring cage, driver, and plastic insert.  Spring cage and driver replacements for AL locks manufactured before this design ...
These parts are no longer available.  For reference the spring part number is 4841 and the clip part number is 4326.
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 ...
Levers may sag due to an incorrectly installed springcage or an incorrect springcage.Mortise locks with a fixed (rigid) lever such as an L9080 will use a spacer on the rigid lever (outside) and a s...
The JD YA6 tailpiece is intentionally designed such that the tailpiece cannot be installed at the same time as the cylinder.  Interchangeable cylinders assume that the lever and taipiece is in...
See the JD Yale Lever installation instruction HERE