Von Duprin 9975L-NL-06 4 643E LHR Grade 1 MTS 643E Exit Device

Von Duprin 9975L-NL-06 4 643E LHR Grade 1 Mortise Exit Device offers superior functionality for both single and double doors, making it an ideal choice for commercial applications. This Grade 1 Mortise Exit Bar features a robust 48" device length and a night latch function, complemented by an elegant 06 lever with escutcheon trim in an aged bronze finish. Designed to fit stock hollow metal doors with an 86 cutout and door stiles as narrow as 4 3/4", the 9975 series is UL listed for panic exit hardware, ensuring safety and reliability. Its innovative 3/4" anti-friction latch bolt is field reversible, allowing for easy installation without removing the lock from the door. Additionally, the device includes a non-handed auxiliary bolt for added security and a faceplate with adjustable bevel. With ANSI A156.3 – 2001 Grade 1 certification, the 9975L-NL-06 is built to withstand the demands of high-traffic environments. The device’s centerline is positioned at 39 13/16" from the finished floor, making it user-friendly for various applications. Fasteners and sex bolts are included for installation on doors 1-3/4" to 2-1/4" thick, ensuring a secure fit. Invest in the Von Duprin 9975L for enhanced safety and accessibility in your building.

Grade 1 Mts Exit Device 643E

Grade 1 Mortise Exit Bar, 48" Device, Night Latch Function, 06 Lever with Escutcheon Trim, Hex Dogging, Aged Bronze Finish, Field Reversible

9875/9975 Mortise lock device for all types of single or double doors, UL listed for panic exit hardware. Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3⁄4" (121mm). The 7500 Mortise lock is equipped with a 3⁄4" (19mm) anti-friction latch bolt which is field reversible without removing the lock from the door. It has a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel.

Devices are ANSI A156.3 – 2001 Grade 1

The 9975 Series is for all types of single or double doors and is UL listed for panic exit hardware.  Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3 /4" (121mm). 

• Device functions: Device ships EO/DT/NL. Field selectable. For TP, K or L remove NL drive screw from device.
• Device lengths: 3' 2'4' to 3' (711mm to 914 mm) Door size 4' 2'10" to 4' (864 mm to 1219 mm) Door size
• Device centerline from finished floor: 39 13/16" (1011 mm) 39 11/16" (1008 mm) with mullion
• Center case dimensions: 8" x 2 3/4" x2 3/8" (203mm x 70mm x 60mm)
• Mechanism case dimensions: 2 1/4" x 2 1/4" (57mm x 57mm)
• Projection: Pushbar neutral – 3 13/16" (97 mm) Pushbar depressed – 3 1/16" (78 mm)
• Fasteners & sex bolts (SNB): Includes screw pack for 1 3/4" (44mm) and 2 1/4" (57mm) thick metal or wood do

Resources

• 10 Things You Need to Know About the Von Duprin Chexit
• 98/9975-2 Series Wood Door Template
• 990TP/TP-BE/NL Trim 98/9975 Mortise Lock Device Installation Instructions
• QEL Data Sheet
• Von Duprin Finishes Chart