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8
Full Size Interchangeable Core
Schlage
®
figure-8 interchangeable core (IC) locksets allow
immediate rekeying at the door simply by using a special
control key to replace the core.
Primus
®
High Security Cylinders
Primus high security cylinders are available to add patented key
control and varying degrees of geographical exclusivity to most
Schlage 6-pin key systems, whether Everest or Classic keyways.
In addition to a conventional pin tumbler mechanism, Primus
cylinders incorporate a patented finger pin and sidebar design
providing a “dual-locking” cylinder that is virtually pick-
proof. Resistance to drilling and other physical attack is
optional by specifying 20-500 Series UL437 Listed cylinders.
Classic Primus cylinders are recommended for upgrading
existing Classic key systems. Due to its extended patent life, the
newly designed Everest Primus is recommended for new key
systems and for upgrading existing Everest
®
key systems. Specify
keyway to differentiate between Everest and Classic. Example:
CP (Classic) vs. C123 (Everest).
Cylinder for Most Functions
Levers Description
23-065 6-Pin conventional (standard)
20-765 Primus high security
20-565 Primus UL437 Listed high security
23-000 Hotel cylinder
N123-042 Temporary construction plug, plastic for functions
Standard Cylinders*
*Available in 606 and 626 finish only. Everest C123 keyway standard.
Tailpiece is vertical (shown) for
levers.
Standard Cylinders
Schlage
®
locks are provided with cylinders precision built to
extremely close tolerances and the highest standards of accuracy.
Using only solid brass plugs, extruded brass shells, phosphor
bronze springs, nickel silver keys and pins, ensures long life
and ease of operation. For complete listing of cylinder parts,
refer to the New D-Series Service Manual (SC-2058).
Conventional cylinders are available in Classic keyways or
in patented Everest
®
keyways. Specify keyway
to differentiate between Everest and Classic. Example:
C (Classic) vs. C123 (Everest).
Available in all lever designs, full size interchangeable cores
can be integrated into any 5 or 6-pin Schlage key.
To order complete locks with full size cores, change suffix
f rom PD to RD. Example: ND53RD. To order locks less core,
change suffix to JD. To order with full size construction core,
change suffix to TD.
Number Description
23-030 Conventional core
20-740 Primus high security core
Full Size Interchangeable Cores*
*Available 606 and 626 finish only. Everest C123 keyway standard.
Driver
N123-127