There are two parts that can be referred to as control pins for a 23-030 (FSIC core).C603-967 is the lower control pin that sits in the seventh hole of the FSIC plug. (part B in exploded view) ...
The "C" indicates small format IC core, which is the only core style Falcon products. The C987 will be provided less core unless -6, or -7 suffix is specified (6 or 7 pin core)
Example:...
It is not possible to key SFIC and standard cylinders including Schlage FSIC into the same system. A keyway name may be shared between the two key fami...