DOUBLE CYLINDER ENTRANCE ANSI

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Cylindrical Locks: a bored lockset whose latch or bolt locking mechanism is contained in the portion installed through the cross-bore Medium, high to extra heavy duty Commercial, mul...
Schlage does not have any cylinders certified to the BHMA A156.30 Grade 1 standard.  
TP-2, Double Cylinder Option (BHMA Exit Function)
L-2, Double Cylinder Option (BHMA Exit Function)
The 98/99 rim device can be converted to double cylinder 98-2 or 99-2. Double cylinder features an inside key cylinder which locks or unlocks the outside trim (Classroom Function) and an outside...
Double cylinders are only available on Von Duprin 98/99 Rim and 98/9975 Mortise devices.
ND -series locks manufactured on or after January 30, 2017 use the following spring cages:Outside - N523-218 - For ALL cylinder options except for JD-YA6, JD-YA7 and JD-MEDInside - N523-222 -...
ND-series locks manufactured before January 30, 2017 used the following spring cages:
Inside cylinder locks and unlocks the outside trim, such as thumb piece, knob or lever.  Outside cylinder functions as an NL when inside cylinder locks the outside trim.Double cylinder fe...