
Von Duprin 9857EO | Grade 1 Three Point Latching Exit Device with Smooth Mechanism Case
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 914mm) Door size
4' 2'10" to 4' (864mm to 1219mm) Door size
Device centerline from finished floor
39 13⁄16" (1011mm)
Center case
8" x 2 3⁄4" x 2 3⁄8" (203mm x 70mm x 60mm)
Mechanism case
2 1 ⁄4" x 2 1 ⁄4" (57mm x 57mm)
Projection
Pushbar neutral – 3 13⁄16" (97mm)
Pushbar depressed – 3 1 ⁄16" (78mm)
Latch bolt
Deadlocking anti-friction top and bottom bolt, 5/8" (16mm) throw; Deadlocking rim bolt, 3⁄4" (19mm) throw
Door undercut
1 ⁄4" (7mm) recommended
Top and bottom latch case
4 1 ⁄2" x 2 1 ⁄8" x 1 1 ⁄2" (114mm x 54mm x 38mm)
Vertical rods
1 ⁄2" square tubing, standard rods accommodate 7' (2134mm) doors. Top rod length: 34 15⁄16" (887mm); Bottom rod length: 31 1 ⁄2" (794mm). Extension rods available in 3' (914mm) for doors over 7'. One piece top rod is available for 8' (2438mm) and 10' (3048mm) doors.
Template
List of Compatible Exit Trims With Von Duprin 9857/9957 Series Exit Devices
| Part # (Click link below to view Part) | Image | Works with Exit Device | ANSI Function | Function Description |
|---|---|---|---|---|
| 990DT - Dummy Trim |
|
98/99 Rim/Rim-F XP98/XP99 Rim/Rim-F 98/9927/27-F 98/9947/47-F 98/9947WDC/WDC-F 98/9948/48-F 98/9949/49-F 98/9950WDC/50WDC-F 98/9957/57-F 98/9975/75-F |
02 | Pull when dogged |
| 990NL - Night latch |
|
03 | Key retracts latch bolt | |
| 990TP - Thumbpiece |
|
05 | Key locks and unlocks | |
| 990TP-BE - Thumbpiece blank escutcheon |
|
15 | Always operable, no cylinder | |
| 996K - Knob |
|
08 | Key locks and unlocks | |
| 996K-NL - Knob-night latch |
|
03 | Key retracts latch bolt | |
| 996K-BE - Knob-blank escutcheon |
|
14 | Always operable, no cylinder | |
| 996K-DT - Knob-Dummy Trim |
|
02 | Pull when dogged | |
| 996L - Lever |
|
08 | Key locks and unlocks | |
| 996L-NL - Lever-night latch |
|
03 | Key retracts latch bolt | |
| 996L-BE - Lever-blank escutcheon |
|
14 | Always operable, no cylinder | |
| 996L-DT - Lever-Dummy Trim |
|
02 | Pull when dogged | |
| 996L-KC - Lever Key Capture |
|
09 | Key unlocks, lever retracts latch bolt | |
| 110NL-MD/110NL-WD - Night Latch Cylinder Assembly | ![]() |
03 | Key retracts latch bolt | |
| 696DT - Dummy Trim | ![]() |
98/99 Rim/Rim-F XP98/XP99 Rim/Rim-F 98/9927/27-F 98/9947/47-F 98/9947WDC/WDC-F 98/9948/48-F 98/9949/49-F 98/9950WDC/50WDC-F 98/9957/57-F 98/9975/75-F |
02 | Pull when dogged |
| 696NL - Night latch | ![]() |
03 | Key retracts latch bolt | |
| 696TP - Thumbpiece | ![]() |
05 | Key locks and unlocks | |
| 696TP-BE - Thumbpiece blank escutcheon | ![]() |
15 | Always operable, no cylinder | |
| 697DT - Dummy Trim | ![]() |
02 | Pull when dogged | |
| 697NL - Night latch | ![]() |
03 | Key retracts latch bolt | |
| 697TP - Thumbpiece | ![]() |
05 | Key locks and unlocks | |
| 697TP-BE - Thumbpiece blank escutcheon | ![]() |
15 | Always operable, no cylinder |
- Option:Choose Finish (Click here to see our Detailed Door Hardware Finish Guide):
- https://blog.locksandsafes.com/2020/07/28/lock-and-door-hardware-finishes/



















