Von Duprin 8875EO Mortise Lock Crossbar Exit Device, For 4' Doors

The Von Duprin 8875EO is a Grade 1 mortise lock crossbar exit device built for 4-foot doors in high-traffic commercial, institutional, and government buildings. "EO" stands for Exit Only, which means the device ships without outside trim. It's part of Von Duprin's classic 88 Series, the traditional crossbar panic bar that's been the spec-writer's default for decades in hospitals, schools, stadiums, and government facilities. UL listed for accident hazard and fire exit hardware, ANSI A156.3 1994 Grade 1 certified.

What Is the Von Duprin 8875EO Mortise Exit Device

The 8875EO is the mortise lock version of the Von Duprin 88 Series crossbar panic bar. Instead of mounting the latch on the surface of the door like the rim variant, the 8875 uses a mortise lock body dropped into the door stile for a cleaner install and a more robust engagement. The "EO" suffix means Exit Only, so the device ships without outside trim. That's standard for egress-only openings like rear service doors, stairwell exits, and loading dock corridors where you don't need outside entry. If the opening requires keyed access from outside, pair the 8875EO with the matching 373L lever trim, 880K knob trim, 880TP thumbpiece trim, or 880NL night latch trim.

Von Duprin 8875EO Specifications

Full dimensions and ratings for your door schedule:

• Device type: mortise lock crossbar exit device

• Door width: up to 4' (field-sizeable crossbar, ships 42" / 1067mm)

• Compatible door: hollow metal with standard 86 cutout

• Minimum stile width: 4-3/4" (121mm)

• Latch bolt: 3/4" throw

• Strike: No. 575 standard, dull black powder coat

• Cylinder backset: 2-3/4" (70mm)

• Crossbar height to finished floor: 36-13/16" at center

• Latch bolt height to finished floor: 40-3/32" at center

• Crossbar projection: 4-7/8" neutral, 4" depressed

• Crossbar tubing diameter: 1"

• Face plate: 1-1/4" x 8" x 7/32"

• Lock case: 4-5/8" x 5-3/4" x 1-3/16"

• Dogging: hex key dogging, standard

• Ratings: UL listed Accident Hazard and Fire Exit Hardware, ANSI A156.3 1994 Grade 1

88 Series Finishes and Handing Options

Available finishes: US4 Satin Brass (standard), US26D Satin Chrome , US10 Satin Bronze Clear Coated, US10B Oil Rubbed Bronze, US26 Bright Chrome, and US3 Bright Brass. Specify handling at checkout: either RHR (Right Hand Reverse) or LHR (Left Hand Reverse) depending on how your door swings. The 8875 is not field-reversible, so confirm handling before placing the order. Electric locking and unlocking options are available for access control integration if your project calls for remote operation.

8875EO Compatible Trims and Fire-Rated Option

Because this is an Exit Only device, it ships without outside trim. For openings that need keyed entry, add one of these: 373L lever trim (available in 06, 03, or 17 lever designs), 880K knob trim, 880TP thumbpiece trim (or 880TP-BE with blank escutcheon), or 880NL night latch trim. Dummy trim options are also available if you need the outside aesthetic without function. For fire-rated openings, step up to the Von Duprin 8875EO-F fire-rated version, which is UL 10C listed for fire exit hardware and ships with dogging removed per code.

Why Buy the Von Duprin 8875 from American Locksets

We've stocked Von Duprin panic devices since 2001, and the 8875EO ships the same day from the 88 Series crossbar exit device lineup.