The standard (non-Primus) cylinder for the ALX50, ALX53, and ALX80 is 21-020
The standard (non-Primus) cylinder for the ALX70 is 23-195
The Primus cylinder for the ALX50, ALX53,...
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
...
DESCRIPTION
PART NUMBER
Conventional Core
23-030
Conventional Core less logo
23-031
Primus Core
20-740
Primus XP Core
20-740-XP
Primus Core less logo
20-741
...
For modular designs:
All functions except ND85 the tailpiece part number is N523-022.
The ND85 tailpiece part number is N523-123.
For non-modular designs:
All functions except ND85 the t...
UL437 is testing requirement that cylinders pass both a timed cylinder pick test and a forceful core/cylinder pull test. We have various cylinders to meet this need, please reference our price boo...