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The Schlage ND50 is the entrance and office function (ANSI F82) of the ND Series, Schlage heavy duty Grade 1 cylindrical lock. A key cylinder in the outside lever and a push button in the inside lever give you the classic office door: staff lock up on the way out with the button, and anyone with a key gets back in.
The behavior is worth reading closely, because it catches people out. Pushing the button on the inside lever makes the outside lever inoperative. The key outside does not lock the door - it only unlocks. Turning the key outside, or rotating the inside lever, retracts the latch and releases the button, so the door is left unlocked afterward. The inside lever is always free for immediate egress.
It ships on a deadlatch and takes conventional, FSIC, or SFIC cylinder formats, including less-cylinder options if you are supplying cores from an existing system. Conventional and FSIC default to the patented Everest 29 S123 keyway, and the lock can be keyed different, keyed alike, master keyed, or construction keyed.
The ND Series margin over the standard carries through: 3,100 in-lb of abusive lever torque (2.6x BHMA), 1,600 lbs of offset lever pull (8x BHMA), near zero droop and wobble after 16 million cycles (16x BHMA) with no set screws or O-rings, and latch retraction under 200 lb preload (4x BHMA). Nine lever designs, nine finishes, and a 10 year mechanical warranty.
Features
- Entrance and office function - key cylinder outside, push button inside, deadlatch.
- Outside lever made inoperative by pushing the button on the inside lever.
- Key outside does not lock - it unlocks and releases the button.
- Rotating the inside lever also retracts the latch and releases the button.
- 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
- ND50 entrance and office lock
- ANSI Function
- F82
- Trim
- Lever with key cylinder outside; push button in the lever inside; deadlatch
- Unlocked State
- Latch retracted by either lever
- Locking
- Outside lever is made inoperative by pushing the button on the inside lever. The key outside does not lock
- Unlocking
- Key outside, or rotating the inside lever, retracts the latch and releases the button, unlocking the outside lever
- 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 ND50 mean?
- It is the Schlage function code for the entrance and office lock, ANSI F82. Key cylinder outside, push button inside, deadlatch.
- Can I lock the door with the key from outside?
- No, and this surprises people. On the ND50 the key outside does not lock. Locking is done with the push button on the inside lever. The key only unlocks. If you need to lock from the corridor with a key, that is a classroom function, not this one.
- Does the door stay locked after someone keys in?
- No. Turning the key outside releases the button as it retracts the latch, so the door is left unlocked. The same happens when someone rotates the inside lever. Whoever leaves last has to push the button again.
- Can people always get out?
- Yes. The inside lever is always free for immediate egress, whether the button is pushed or not.
- 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, which is 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 you are supplying your own from an existing system.
- 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, and we will key them before they ship. Construction keying is also available.
- Can the inside lever be a different design?
- Yes. The inside lever can be specified the same as the outside or as any other ND lever design.
- 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.
- Is indicator trim available?
- Schlage offers indicator trim on this function, but only as a single sided option, and locks ordered with it fit 1-3/4 inch doors (spacer kits cover 1-3/8 to 1-11/16 inch). Contact us if you need it and we will quote it.
