Are the ND, NDe, AD and CO levers the same?

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 30, 2017 the AD CYL , CO CYL and NDe levers were the same as the ND .

The AD and CO mortise, mortise deadbolt, or 993 exit trim, levers are different and unique to the AD and CO line.

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