516-812-0917
Help
Live Chat
The Schlage ND53 is the entrance lock function (ANSI F109) of the ND Series, Schlage heavy duty Grade 1 cylindrical lock. A key cylinder in the outside lever pairs with a push/turn button in the inside lever, giving the opening two different locking behaviors from one lock, on a deadlatch.
Push the button and the outside lever is locked, but it releases the moment anyone turns the key outside or rotates the inside lever - convenient for a door that should relock each time it is used. Push and turn the button and the lock holds: the key outside or the inside lever still retracts the latch, but the outside lever stays locked until someone rotates the inside button back to its start position. That is the setting for a door you want to leave secured.
Schlage attaches one caution to the push/turn mode, and it is worth reading before you specify this function. Leaving the room without fully releasing the push/turn button can lock people out, because the door stays locked behind them. Egress itself is never affected - the inside lever is always free for immediate egress - but anyone who walks out on a turned button will need a key to get back in.
It takes conventional, FSIC, or SFIC cylinder formats, including less-cylinder options for existing systems, and defaults to the patented Everest 29 S123 keyway. Note that as with the other ND entrance functions, the key outside does not lock - it only unlocks.
Features
- Entrance lock function - key cylinder outside, push/turn button inside, deadlatch.
- Two locking modes from one button - push for release on next use, push and turn to stay locked.
- Pushed button: key outside or rotating the inside lever retracts the latch and releases the button, unlocking the outside lever.
- Pushed and turned button: key outside or the inside lever retracts the latch but the outside lever stays locked until the inside button is rotated back to start position.
- Key outside does not lock - it unlocks only.
- Inside lever always free for immediate egress.
- Conventional, FSIC, and SFIC cylinder formats, plus less-cylinder options for existing key systems.
- Patented Everest 29 S123 keyway standard on conventional and FSIC cylinders.
- Keyed different, keyed alike, master keyed, or construction keyed.
- ANSI/BHMA Grade 1 certified to A156.2-2011, Series 4000.
- Resists 3,100 in-lb of abusive lever torque, 2.6 times the BHMA requirement.
- Restricts entry against 1,600 lbs of offset lever pull, 8 times BHMA.
- Near zero droop and wobble after 16 million cycles, 16 times BHMA, with no set screws or O-rings.
- Nine ADA compliant lever designs and nine finishes; inside lever can differ from outside.
- Non-handed; UL Listed 3 hour fire rated and BAA compliant.
Specifications
Function
- Schlage Function
- ND53 entrance lock
- ANSI Function
- F109
- Trim
- Lever with key cylinder outside; push/turn button in the lever inside; deadlatch
- Unlocked State
- Latch retracted by either lever
- Locking
- Outside lever is made inoperative by pushing the button, or by pushing and turning the button, on the inside lever. The key outside does not lock
- Pushed Button Unlocking
- Key outside or rotating the inside lever retracts the latch and releases the button, unlocking the outside lever
- Pushed and Turned Button Unlocking
- Key outside or rotating the inside lever retracts the latch but does not unlock the outside lever. Rotate the inside button to the start position to allow button release and unlocking by key or by rotating the inside lever
- Caution
- Egress without fully releasing the push/turn button can result in lock-out situations
- Egress
- Inside lever always free for immediate egress
Cylinders and Keying
- P6
- Conventional 6-pin cylinder, Everest 29 S123 keyway
- P
- Conventional 6-pin cylinder keyed 5-pin, Classic C keyway
- L
- Less conventional cylinder, for supplying your own
- R
- FSIC 6-pin full size interchangeable core
- J
- Less FSIC core, for an existing full size interchangeable core system
- B
- Less SFIC core, for an existing small format interchangeable core system
- Keying
- Keyed different (standard), keyed alike, master keyed, or construction keyed
- Default Keyway
- Everest 29 S123 on conventional and FSIC cylinders. Master keyed systems default to Everest 29 S145
- Pack Cylinders Loose
- PCL available if cylinders should ship uninstalled
Performance
- Abusive Lever Torque
- 3,100 in-lb, equivalent to over 690 lbs at the end of a 4-1/2 inch lever (2.6x BHMA)
- Offset Lever Pull
- 1,600 lbs (8x BHMA)
- Vertical Impact
- 100 impacts with no failure or indication of stress (20x BHMA)
- Cycle Life
- Near zero droop and wobble after 16 million cycles (16x BHMA)
- Latch Preload
- Latch retraction with 200 lb preload (4x BHMA)
Chassis and Trim
- Chassis Material
- Modular design of zinc and steel components, plated for corrosion protection
- Handing
- Non-handed
- Door Thickness
- Standard 1-5/8 to 2-1/8 inches. Optional 1-3/8 inches to 6 inches in EE, EO, EI, and ED configurations
- Backset
- Standard 2-3/4 inches, with 3-3/4 inch latches available and a 5 inch backset extension
- Lever Designs
- Athens (ATH), Boardwalk (BRK), Broadway (BRW), Latitude (LAT), Longitude (LON), Omega (OME), Rhodes (RHO), Sparta (SPA), Tubular (TLR), in pressure cast zinc plated to match the finish. The inside lever can be specified the same as outside or as a different design
- Roses
- Wrought brass or zinc, plated to match the finish. Rose diameter 3-7/16 inches
- Finishes
- 605 bright brass (US3), 606 satin brass (US4), 612 satin bronze (US10), 613 oil rubbed bronze (US10B), 619 satin nickel (US15), 622 matte black (US19), 625 bright chrome (US26), 626 satin chrome (US26D), 643e aged bronze
Latch Options
- 13-247
- Deadlatch, 2-3/4 inch backset, 1-1/8 x 2-1/4 inch square corner faceplate (standard)
- 13-248
- Spring latch, 2-3/4 inch backset
- 14-028
- Deadlatch, 3-3/4 inch backset, 1-1/8 x 2-1/4 inch square corner
- 14-010
- Spring latch, 3-3/4 inch backset, 1-1/8 x 2-1/4 inch square corner, non-restoring
- 14-042
- Anti-friction fire deadlatch, 3/4 inch throw, 2-3/4 inch backset, for pairs of doors
- 43-005
- 5 inch backset extension
Strike Options
- 10-025
- ANSI strike, 1-1/4 x 4-7/8 inches, 1-3/16 inch lip (standard). Also available with the K510-066 dust box, or with a 1-3/8 or 1-1/2 inch lip
- XQ07-351
- 10-025 strike with a 7/8 inch flat lip, or special lip lengths through 6 inches
- 10-013
- T-strike with dust box, 1-1/8 x 2-3/4 inches, with a 1-1/8 or 1-1/2 inch lip
- 10-016
- T-strike with deep dust box for the 3/4 inch fire latch, 1-1/8 x 2-3/4 inches
Certifications
- ANSI/BHMA
- A156.2-2011, Series 4000 Grade 1 cylindrical locks
- Accessibility
- Complies with ICC A117.1 Accessible and Usable Buildings and Facilities
- Fire
- UL 10C and CAN/ULC-S104. Three hour A label single fire door 4 ft by 10 ft. Pairs of doors three hour at 8 ft by 8 ft with the 3/4 inch latch option; pairs 90 minute at 8 ft by 10 ft with the 3/4 inch latch option
- California Fire Code
- Levers with a return to door of 1/2 inch or less comply: Rhodes, Sparta, Tubular, Omega, Longitude, and Boardwalk
- Florida Building Code
- Complies with Florida Building Code (ASTM E330, E1886, E1996) and Miami Dade (TAS 201, 202, 203) hurricane requirements
- Federal
- Meets FF-H-106C Series 161. BAA compliant on all functions
- Warranty
- 10 year mechanical and 3 year electro-mechanical
Frequently Asked Questions
- What does ND53 mean?
- It is the Schlage function code for the entrance lock, ANSI F109. Key cylinder outside, push/turn button inside, deadlatch.
- What is the difference between pushing and push-turning the button?
- How long the lock holds. Pushed, the outside lever unlocks the next time anyone turns the key or rotates the inside lever. Pushed and turned, the outside lever stays locked through all of that, and only unlocks when someone rotates the inside button back to its start position.
- What is the lock-out caution about?
- Schlage warns that leaving the room without fully releasing the push/turn button can lock people out. If you turn the button and then walk out, the door is locked behind you and takes a key to reopen. Getting out is never a problem - the inside lever is always free - but getting back in will be.
- Can I lock the door with the key from outside?
- No. On the ND53 the key outside does not lock. Locking is done with the push/turn button on the inside lever. The key only unlocks.
- Can people always get out?
- Yes. The inside lever is always free for immediate egress in every button position.
- How is this different from the ND50?
- The button. The ND50 has a plain push button with one behavior. The ND53 has a push/turn button, adding a hold-locked mode on the same lock. Choose the ND53 when the same door sometimes needs to relock on each use and sometimes needs to stay locked.
- Which cylinder option do I pick?
- Match your existing key system. P6 is a conventional 6-pin cylinder on the patented Everest 29 S123 keyway, the Schlage default. P is a conventional cylinder on the open Classic C keyway. Pick R for a 6-pin FSIC core, or L, J, or B to receive the lock less cylinder or less core when supplying your own.
- Can these be keyed to my existing keys?
- Yes. Choose keyed alike to make a group open on one key, or master keyed to fold them into an existing system. Tell us your keyway and bitting or send a sample. Construction keying is also available.
- Which latch do I need?
- The standard 13-247 deadlatch on a 2-3/4 inch backset covers most doors. Use a 3-3/4 inch latch for deeper stiles, and the 14-042 anti-friction fire deadlatch with its 3/4 inch throw on pairs of doors, which is also what the pair-door fire listings require.
- Does the lever choice matter for code?
- It can. For the California Fire Code, levers with a return to door of 1/2 inch or less comply, which covers Rhodes, Sparta, Tubular, Omega, Longitude, and Boardwalk. Confirm the lever design against your local requirements.
