American Lock Company APKG4680210 | Lock Cover Plate, for Use with A1000, A5000, A6000 Series

The trap door is an essential element in providing security for the cylinder in your AMERICAN LOCK. The orientation of the trap door is slightly different based upon the keyway in the cylinder. The table below indicates the part number of the trap door that should be used in a lock when a particular keyway is used in that same lock. The picture in the table is how the trap door would appear from the bottom of the lock.