Primus on yale mortise locks

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Refer to table 1 for the list of Schlage AL-Series cylinders.     AL-Series Cylinder Reference Table    Function  Cylinder Mechanism   Complete Cylinder   Non-Hotel Functions  ...
Schlage offers a comparable cam to the Yale 2160 and it will operate any Yale lock that utilizes the Yale 2160 cam.     Schlage Cams for Yale 2160  Part Number  Description  B520-7...
Standard Schlage cylinders will not fit in Yale locks, but Schlage does offer special retrofit cylinder that, when ordered, can fit into specific Yale locks.  See below for retrofit options.  ...
Only the Schlage ND-Series can be prepped to accept non-Schlage cores. All designs are supplied with the appropriate tailpiece Non-Schlage cores are NOT included Lever designs available vary d...
The AL lock can not be ordered to accept any competitor full size core.  The ND lock should be used in these applications.
The ND85/AL85/A85 hotel lock is only available in a conventional Key-in-Lever cylinder.  Interchangeable core and Primus are not available with this function. 
A Primus Hotel cylinder (as well as an IC hotel cylinder) is not possible because there isn't enough room inside the cylinder for all of the required components.