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The Schlage ND44 is the hospital privacy function of the ND Series, Schlage heavy duty Grade 1 cylindrical lock. A push button in the inside lever makes the outside lever inoperative, and the outside lever carries an emergency turn that staff rotate by hand to release it. It is non-keyed - privacy with no cylinder and no key system.
The emergency turn is what separates this from a standard privacy lock. Staff outside the room release the door without a key, a tool, or a screwdriver, which is why this function is specified on patient bathrooms, exam rooms, and behavioral and care areas where someone may need to be reached immediately.
It is also designed so the room cannot be left locked by accident. Rotating the inside lever retracts the latch and releases the button, unlocking the outside lever, and simply closing the door also unlocks it, preventing lock-out. The inside lever is always free for immediate egress, and the springlatch is retracted by either lever whenever the lock is unlocked. Schlage indicator trim is available where staff need to read occupancy at a glance.
The ND Series margin over the standard carries through: 3,100 in-lb of abusive lever torque (2.6x 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, a 626AM antimicrobial option, and a 10 year mechanical warranty.
Features
- Hospital privacy function - push button in the inside lever makes the outside lever inoperative.
- Emergency turn in the outside lever - staff release the door by hand, with no key or tool.
- Non-keyed - privacy with no cylinder or key system.
- Anti lock-out - closing the door unlocks the outside lever.
- Rotating the inside lever retracts the latch and releases the button in one motion.
- Inside lever always free for immediate egress.
- Springlatch retracted by either lever when unlocked.
- Available with Schlage indicator trim for at a glance occupancy status.
- 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.
- 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, plus optional 626AM antimicrobial coating.
- Non-handed; UL Listed 3 hour fire rated and BAA compliant.
Specifications
Function
- Schlage Function
- ND44 hospital privacy lock
- ANSI Function
- None assigned
- Trim
- Emergency turn in the lever outside; push button in the lever inside; springlatch
- Unlocked State
- Latch retracted by either lever
- Locking
- Outside lever is made inoperative by pushing the button on the inside lever
- Release
- Rotating the inside lever retracts the latch and releases the button, unlocking the outside lever. Closing the door also unlocks, preventing lock-out
- Emergency Unlock
- Rotating the emergency turn in the outside lever releases the button to unlock. No key or tool is required
- Egress
- Inside lever always free for immediate egress
- Keying
- Non-keyed. No cylinder is required or used
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. Optional 2-3/8, 3-3/4, and 5 inches
- 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. Tactile versions available as 8AT, 8BK, 8BY, 8LT, 8LN, 8RO, 8SP, 8TR
- Roses
- Wrought brass or zinc, plated to match the finish. Rose diameter 3-7/16 inches
- Finishes
- 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 643e aged bronze. Optional antimicrobial coating on 626, ordered as 626AM
Indicator Trim
- Availability
- Offered on the ND44, in all standard lever designs and finishes
- Construction
- Cast zinc with a high density polycarbonate window
- Size
- 6-1/16 x 3-11/16 x 15/16 inches
- Door Thickness
- Locks ordered with indicator trim fit 1-3/4 inch doors. Separately sold spacer kits allow application to doors from 1-3/8 to 1-11/16 inches
Latch and Strike
- Latch
- Springlatch on this function. Standard 1/2 inch throw stainless steel
- Default Latch Part
- 13-247, 2-3/4 inch backset with 1-1/8 x 2-1/4 inch square corner faceplate
- Strike
- Standard ANSI curved lip, 1-1/4 x 4-7/8 inches with 1-3/16 inch lip length. Optional T strike, ANSI strikes with alternative lip lengths, and dust box options
- Default Strike Part
- 10-025, ANSI, no box, 1-1/4 x 4-7/8 inches
Options
- Lead Lining
- XN12-307, for lead lined door applications
- Backset Extension
- 43-005, 5 inch backset extension
- Screw Option
- TORX
- BAA
- Buy American Act compliant, available on all functions
- Ordering
- Attribute values are given in sequence separated by periods: series and function, lever design, finish, then any attributes that deviate from the defaults. The cylinder type field applies to keyed functions only and is not used on the ND44
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
- 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 ND44 mean?
- It is the Schlage function code for the hospital privacy lock. A push button in the inside lever locks the outside lever, and an emergency turn in the outside lever releases it.
- How is this different from the ND40 bath and bedroom privacy lock?
- The outside release. The ND44 has an emergency turn that staff rotate by hand. The ND40 has a recessed slot that needs an emergency key or a small flat screwdriver. If seconds matter or staff will not be carrying a tool, the ND44 is the one to specify.
- Do I need an emergency key with this?
- No. The emergency turn is operated by hand, so there is nothing to buy, carry, or lose. That is the main practical advantage over the ND40.
- Can the room get locked by accident?
- No. Closing the door unlocks the outside lever, and rotating the inside lever retracts the latch and releases the button at the same time. Both behaviors exist specifically to prevent lock-out.
- Can people always get out?
- Yes. The inside lever is always free for immediate egress, regardless of whether the button is pushed.
- Can I see whether the room is occupied?
- Yes, with Schlage indicator trim, offered on the ND44 in all standard lever designs and finishes. Note that locks ordered with indicator trim fit 1-3/4 inch doors, with separately sold spacer kits covering 1-3/8 to 1-11/16 inch doors.
- Where is it normally used?
- Patient bathrooms, exam and treatment rooms, and care areas where a room must be private but staff need to reach the occupant immediately without fetching anything.
- 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.
- What door thicknesses and backsets does it fit?
- Standard is 1-5/8 to 2-1/8 inch doors on a 2-3/4 inch backset. Optional configurations cover 1-3/8 inch up to 6 inch doors, and 2-3/8, 3-3/4, and 5 inch backsets. Indicator trim versions have their own narrower range, noted above.
