Dormakaba Simplex 5031XSWL-26D Pushbutton Lock - Satin Chrome - Schlage C Keyway

The dormakaba Simplex 5031XSWL-26D is an extra heavy-duty mechanical pushbutton cylindrical lock with key-in-lever and Schlage C keyway cylinder included. It operates in combination entry and key override mode, with interior combination change accessible from inside the door. The internal drive parts are cast stainless steel in a clutch-free direct-drive design, and the lock is non-handed for left or right hand door installation in seconds. It carries a 3-hour UL/ULC fire rating for A label doors and a 3-year warranty in satin chrome (26D/626) finish.

How model 5031 combination entry and interior code change works

The 5031 is the interior combination change model in the Simplex 5000 series. This means the access code can be changed from inside the door without removing the lock from the door or accessing the exterior. The code is a single combination made from any sequence of one to five of the five numbered buttons, pressed individually or simultaneously, giving thousands of possible combinations. Entering the correct combination allows the lever to retract the latch. Mechanical key override provides a secondary entry method through the Schlage C keyway cylinder, which is included with the lock.

The 5031 does not include a passage mode. Passage mode — which allows the door to operate freely without entering a code — is a feature of the 5041 and 5051 models, which add a thumbturn or key-activated passage function. The 5031 requires the combination code or key every time. This is appropriate for access-controlled openings where unrestricted passage would defeat the purpose of the lock, such as server rooms, restricted storage areas, and sensitive office spaces.

Construction quality and direct-drive design

The Simplex 5000 series uses internal drive parts cast from stainless steel rather than stamped or die-cast zinc components. That distinction matters for longevity on high-cycle commercial doors. Cast stainless steel drive parts resist deformation under load and maintain dimensional consistency through millions of cycles without the wear patterns that affect softer alloys.

The direct-drive design eliminates the clutch mechanism found in many pushbutton lock platforms. A clutch mechanism transfers force through an intermediary coupling that can slip, wear, or fail over time. Direct-drive connects the button actuation mechanically without an intermediary, which reduces the internal part count and the associated failure points. The solid cast housing and solid cast zinc levers complete a construction profile that Simplex markets as extra heavy-duty, the top tier of the 5000 series lineup. The 5-button anodized aluminum keypad is vandal-resistant and fully mechanical — no batteries, no electronics, no power source required.

Installation, backset, and fire rating

The 5031XSWL-26D installs on either left or right hand doors without any re-handing procedure, because the non-handed design accommodates both swing directions as supplied. Backset is 2-3/4" (70mm). Latch options are 1/2" throw with a floating face plate or 3/4" throw with a beveled face plate. The lock fits standard cylindrical door preparations and doesn't require additional door prep beyond what a standard bored cylindrical lock would need. The 3-hour UL/ULC fire rating for A label doors covers the full rating class for interior commercial fire-rated openings. For the full range of Simplex 5000 series models including passage, exterior combination change, and other keyway configurations, browse the Simplex 5000 Series lever locks. The broader mechanical pushbutton locks category covers additional Simplex and other mechanical keyless options, and the full keypad and proximity locks selection is available on this site for electronic access control alternatives.

The 5031XSWL-26D is the satin chrome, Schlage C keyway model with interior combination change. Confirm the correct model suffix for your keyway, finish, and combination change location before ordering.