There are two types of interchangeable cores:
Full size interchangeable cores (FSIC)
Also known as Large Format Interchangeable Cored (LFIC)
Each manufactures FSIC c...
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 RU lock can accept a Schlage Full Size core, but the cylinder suffix must be specified as "J IC-SC" so the correct parts are supplied. The tailpiece will come with the lock.
Example: RU581J IC-SC
The T lock can accept a Schlage Full Size core, but the cylinder suffix must be specified as "J IC-SC" so the correct parts are supplied (including the tailpiece)
Example: T581J IC-SC