If you have a Von Duprin 88 Series exit device and need to add or replace the outside trim, the 880 series is the correct trim family for that device. The Von Duprin 880NL trim is the night latch configuration within that family, and it is the most commonly specified option when the application requires key-controlled entry on an 88 Series rim or mortise device.

This guide covers every 880 series outside trim function, how each one works, which configuration to order for rim versus mortise devices, finish selection, cylinder compatibility, compatible 88 Series devices, and where to source OEM parts. Browse the Von Duprin 880NL Pull Trim at SecurityParts.com, or view the complete Von Duprin 88 Rim Series parts catalog.

What Is the Von Duprin 880NL Trim

The Von Duprin 880NL is an outside pull trim with night latch function, designed specifically for the Von Duprin 88 Series heavy-duty rim and mortise exit devices. "Outside trim" refers to the hardware visible and operable from the non-secured side of the door, typically the corridor or exterior side, while the exit device push bar handles egress from the inside.

The NL designation stands for night latch. In ANSI terminology, the 880NL carries ANSI Function 03, which means a key retracts the latchbolt from outside. When the key is turned, the outside lever or pull is released and the latch retracts, allowing entry. Without a key, the pull grip is fixed and the door cannot be opened from outside. Inside egress is always free through the push bar.

The escutcheon plate is manufactured from 10-gauge (2.4mm) brass, bronze, or stainless steel. The plate measures 3 inches wide by 14-1/16 inches tall with a 2-inch projection. It is non-handed, meaning a single unit works on both left-hand and right-hand door installations without modification. ANSI/BHMA A156.3 (2001) Grade 1 certification applies.

Von Duprin 880NL Pull Trim with Night Latch Function. ANSI/BHMA Grade 1, 10-gauge escutcheon, non-handed. Available in R (rim) and M (mortise) configurations at SecurityParts.com.

Von Duprin 880NL Trim: R vs M Configuration

When ordering this trim, the single most important selection is the configuration suffix: R or M. This determines which cylinder type the trim accepts, and ordering the wrong configuration is the most common mistake when replacing 880 trim.

880NL-R: Rim Device Configuration

The 880NL-R accepts a rim cylinder. Rim cylinders mount through the door and engage the rim device's cylinder cam on the inside. They are used with the standard 88 Series rim exit device in its standard configuration. The rim cylinder is ordered separately and not included with the 880NL-R trim.

Use 880NL-R when: the device is an 88, 88-F, 8827, or 8827-F rim exit device in standard rim configuration.

880NL-M: Mortise Device Configuration

The 880NL-M accepts a 1-1/4-inch mortise cylinder. Mortise cylinders are taller than rim cylinders and engage a mortise cylinder cam in devices configured with a mortise lock chassis. The mortise cylinder is ordered separately and not included with the 880NL-M trim.

Use 880NL-M when: the device is an 8847-F, 8875, or 8875-F device using a mortise lock configuration, or when a standard 88 device has been ordered with a mortise device option.

To confirm which cylinder type your installation requires, look at the device configuration code on the exit device label. The trim model will also match what was originally specified, if the original trim shows 880NL-R, the replacement is also 880NL-R. If unsure, call 845-935-0301. SecurityParts.com pre-order support can confirm the correct configuration before the order ships.

All Von Duprin 880 Series Outside Trim Functions

The 880 series covers five outside trim functions for the Von Duprin 88 Series exit device. Understanding the difference between them is essential when specifying new trim or replacing a worn unit, because each function controls entry from outside in a different way. All five share the same 3" x 14-1/16" escutcheon plate and 2" projection.

880NL: Night Latch Function

ANSI Function 03. A key retracts the latchbolt from outside. The pull grip is fixed unless the correct key is used. Standard outside access control for offices, schools, and institutional buildings where after-hours key security is required. This is the most widely specified function in the 880 series. The 880NL is in stock at SecurityParts.com.

880DT: Dummy Trim Function

The 880DT is a dummy trim with a pull grip that operates freely, it does not require a key and does not control a latch. It is used when the exit device is in the dogged (latched back) position for extended periods, such as during business hours on a high-traffic entrance, and outside entry occurs by pushing the door. The 880DT is also used on the inactive leaf of a pair of doors when no outside access control is needed. Browse the 880DT Pull Trim at SecurityParts.com.

Important: The 880DT is not recommended for use on fire-rated devices. On fire-rated 88-F, 8827-F, 8847-F, or 8875-F devices, the device cannot be dogged, making the dummy function impractical and potentially non-compliant.

880TP: Thumbpiece Trim, Classroom Function

ANSI Function 12. A thumbpiece on the outside trim controls the latch. Pressing the thumbpiece retracts the latch and allows entry. A key can lock or unlock the thumbpiece independently of the latch. This is the classroom function, turning the key in one direction locks the thumbpiece (outside cannot enter), turning it the other direction unlocks (outside can enter by pressing thumbpiece). Used in schools, healthcare exam rooms, and applications requiring toggle-lock outside access.

880K: Knob Trim, Classroom Function

ANSI Function 12. Same classroom function as the 880TP but with a knob instead of a thumbpiece. A key locks and unlocks the knob independently. When locked, turning the knob has no effect. When unlocked, turning the knob retracts the latch. The 880K is specified when the architectural requirement calls for a knob rather than a thumbpiece, or when ADA lever requirements do not apply to the specific opening.

880EO: Exit Only Trim

The 880EO provides no outside trim control of the latch. There is no cylinder, no thumbpiece, and no knob. The pull grip is decorative only. Entry from outside is not possible with the 880EO installed. This function is used on stairwell re-entry doors, loading dock exits, and other locations where the door must allow egress but should not permit re-entry from outside under normal conditions. The 880EO is also the correct trim choice for most fire-rated 88-F devices where no outside entry is required.

Compatible Von Duprin 88 Series Devices

The 880 series outside trim is designed for and compatible with the following Von Duprin 88 Series exit device models. Always verify the device model before ordering trim, because the Von Duprin 88 Series includes both rim and mortise configurations, and the trim suffix (R vs M) must match the device configuration.

88 and 88-F

The standard 88 Series heavy-duty rim exit device. The non-fire-rated 88 supports all five 880 trim functions. The fire-rated 88-F supports 880EO, 880NL, 880TP, and 880K but not 880DT, since dogging is prohibited on fire devices. Both use the 880NL-R (rim cylinder configuration).

8827 and 8827-F

The 8827 is the 88 Series device with a pullman latch at the top and bottom for double-door applications without a center mullion. The non-fire-rated 8827 supports all five 880 functions. The fire-rated 8827-F supports EO, NL, TP, and K but not DT. The NL function on 8827 and 8827-F is available using this trim or by using a 370 series trim set for NL function during installation, or a TP-NL or K-NL designation.

8847-F

A fire-rated CVR (concealed vertical rod) device in the 88 series. The 8847-F uses a mortise cylinder configuration. Order the 880NL-M (mortise cylinder configuration) when specifying NL trim on an 8847-F device.

8875 and 8875-F

The 8875 is the 88 Series device with a mortise lock chassis. The mortise lock provides positive latching through a mortise bolt in addition to the CVR rods. Both the 8875 and fire-rated 8875-F use the 880NL-M (mortise cylinder) configuration. On the E8875 (electrified version), key override is an NL type function.

For the complete 88 Series device and trim compatibility reference, see the Von Duprin 88 Series catalog and the Von Duprin 88 Series buyer's guide at SecurityParts.com.

880NL Trim Dimensions and Specifications

The physical specifications are consistent across all 880 pull trim configurations (880NL, 880DT) that use the standard escutcheon plate. Understanding these dimensions is important for confirming compatibility with an existing door preparation before ordering.

• Escutcheon plate width: 3 inches
• Escutcheon plate height: 14-1/16 inches (14.0625 inches)
• Projection from door face: 2 inches (51mm)
• Gauge: 10 gauge (2.4mm) steel
• Materials: Brass, Bronze, or Stainless Steel (finish-dependent)
• Handing: Non-handed
• ANSI Function: 03 (key retracts latchbolt)
• Standard: ANSI/BHMA A156.3 (2001) Grade 1

The 880K knob trim uses a wider projection (2-3/4 inches) due to the knob body. All other 880 trim configurations share the 2-inch projection of the 880NL.

Finish Options for Von Duprin 880NL Trim

All 880 series trim configurations are available in multiple finishes. Finish selection must match the exit device body and other hardware on the opening. Ordering a finish that does not match the existing hardware creates a visible mismatch and may not comply with specification requirements on public buildings.

Von Duprin finish codes follow the ANSI/BHMA US designation system. Common finishes for this trim include:

• US3 / 605: Bright brass
• US10B / 613: Dark oxidized bronze, oil rubbed
• US26 / 625: Bright chromium plated
• US26D / 626: Satin chromium plated (most common specification)
• US28 / 628: Satin aluminum, clear anodized
• US32 / 629: Bright stainless steel
• US32D / 630: Satin stainless steel

Finish must be specified at the time of order. This is a finished item and cannot be re-finished in the field. For guidance on matching finishes across a multi-product hardware specification, see the commercial door hardware finish guide at SecurityParts.com.

Cylinder Selection for 880NL Trim

This trim does not include a cylinder. The cylinder must be ordered separately and must match the trim configuration (rim or mortise) and the key system in use at the facility.

Rim Cylinder for 880NL-R

A rim cylinder for the 880NL-R is a standard format with a cam on the back that engages the device's cylinder cam follower. The cylinder must be pinned to the correct keyway for the facility's master key system. When ordering a rim cylinder for an 880NL-R installation, provide the keyway, any master key requirements, and the number of keys required.

Mortise Cylinder for 880NL-M

A 1-1/4-inch mortise cylinder is required for the 880NL-M. Mortise cylinders are threaded and secured with a setscrew through the cylinder collar. Von Duprin part numbers 961267 (880-M Cylinder Collar) and 965226 (880-R Cylinder Collar) are the cylinder collar components specific to the 880 series when replacing collar hardware. The mortise cylinder must also be pinned to the facility's keyway and key system.

Key System Considerations

If the facility uses a master key system, the cylinder must be pinned to the same keyway and master key level as the other cylinders in the building. Using a different keyway breaks the key hierarchy and creates a door that cannot be opened with the facility master key in an emergency. Confirm the existing keyway before ordering any cylinder for this installation.

How to Identify Your Current 880 Trim Model

When a 880 series trim has worn or been damaged and needs replacement, the fastest identification method is reading the model number stamped on the trim body or escutcheon. On most 880 trim units, the model number appears on the back of the escutcheon plate or on a label affixed to the trim body.

If the label is unreadable, identify the model by checking these characteristics:

• Pull grip with keyway: Night latch (NL) or dummy with cylinder preparation
• Pull grip without any cylinder hole: Exit only (EO) or dummy without cylinder (DT)
• Thumbpiece above or alongside grip: Thumbpiece function (TP)
• Knob alongside grip: Knob function (K)
• Cylinder type at the door: Rim cylinder = R suffix; 1-1/4" mortise cylinder = M suffix

Once the model is identified, cross-reference against the device model label on the exit device body to confirm compatibility. For the full 88 Series parts and diagram reference, see the Von Duprin 88 Rim Series model page at SecurityParts.com.

Von Duprin 880NL Trim and Fire-Rated Openings

The 880NL is compatible with fire-rated 88 Series devices, including the 88-F, 8827-F, 8847-F, and 8875-F. When installed on a fire-rated device, the following rules apply under NFPA 80:

The exit device must positively latch on every door close. The night latch function on this trim means the outside pull is controlled by key, this does not affect fire rating compliance, as the inside push bar always allows free egress regardless of the outside trim function.

The 880DT dummy trim is not recommended on fire-rated devices because it is designed for use with a dogged (held-open) device, which is prohibited on fire-rated hardware under NFPA 80 Section 4.7.1. If a pull grip is required on a fire-rated device but no key control is needed, the 880EO (exit only) is the appropriate trim choice.

For the complete guidance on fire-rated commercial door hardware requirements, see the commercial door fire rating guide. For OEM parts guidance specific to fire-rated assemblies, see the OEM vs aftermarket commercial door hardware guide.

880NL Trim Components and Replacement Parts

Beyond the trim assembly itself, several individual components within the 880 series are available as separate replacement parts for field repairs. These are useful when the trim escutcheon or pull grip is intact but a specific hardware component has failed.

• 972467: 880 Pull Grip. The pull bar that attaches to the 880 series escutcheon. Replaces a bent or damaged pull independently of the full trim assembly.
• 961267: 880-M Cylinder Collar. Cylinder collar for the mortise cylinder configuration. Replaces a worn or stripped collar on 880NL-M installations.
• 965226: 880-R Cylinder Collar. Cylinder collar for the rim cylinder configuration. Replaces a worn collar on 880NL-R installations.
• 959575: 880-M/V Thumbpiece. The thumbpiece component for 880TP trim on M and V configurations.
• 969353: 880TP Thumbpiece Bracket. The bracket securing the thumbpiece assembly to the escutcheon on 880TP trim.
• 900531: 880 Screw Package for 2-1/4 inch doors. Hardware pack for trim mounting on thick-door installations.
• 900533: 880 Screw Package for 1-3/4 inch doors. Standard hardware pack for trim mounting on standard commercial door thickness.
• 956760: 880 Series Hex Stud. Mounting stud for the 880 series escutcheon assembly.
• 963579: 880NL/DT mounting screw (12-24 x 3/8 inch UFPHMS).

Browse all Von Duprin 88 Series trim and hardware components at the Von Duprin 88 Series parts page at SecurityParts.com.

How to Order Von Duprin 880NL Trim

Ordering this trim correctly requires confirming four specifications before placing the order. Getting any one of them wrong results in a return and delays a repair or installation.

Step 1: Confirm the Device Model

Read the model number from the exit device label. Confirm it is a compatible 88 Series model: 88, 88-F, 8827, 8827-F, 8847-F, 8875, or 8875-F. The 880 trim series does not fit any other Von Duprin series.

Step 2: Confirm R or M Configuration

Check whether the existing installation uses a rim cylinder or a 1-1/4 inch mortise cylinder. Order 880NL-R for rim cylinder installations. Order 880NL-M for mortise cylinder installations.

Step 3: Select the Finish

Match the finish to the existing device and adjacent hardware. This is a finished item. If the exact finish is unknown, contact SecurityParts.com at 845-935-0301 with the existing finish description or the Von Duprin finish code from the device label.

Step 4: Confirm Cylinder Requirements

The trim ships without a cylinder. If a cylinder is needed, order it separately, specifying the keyway, key system level, and number of keys required.

Browse and order the Von Duprin 880NL Pull Trim at SecurityParts.com. For ordering support or configuration questions, call 845-935-0301 or visit the SecurityParts.com contact page.

Why Choose SecurityParts.com for Von Duprin 880NL Trim

SecurityParts.com has supplied OEM Von Duprin commercial hardware since 2001. The 880 series trim is stocked in multiple configurations with same-day shipping from US warehouses on stocked quantities.

Von Duprin commercial door hardware at SecurityParts.com, OEM replacement parts including 880 series trim, 88 Series device components, and complete exit device assemblies.

OEM Parts Only

Every unit stocked at SecurityParts.com is genuine Von Duprin OEM. Non-OEM trim may not meet the ANSI/BHMA Grade 1 standard, may not carry the correct ANSI Function 03 certification, and can void the UL listing on fire-rated assemblies.

Configuration Support Before You Order

R vs M configuration errors are the most common ordering mistake on 880 trim. SecurityParts.com pre-order support can confirm the correct configuration from your device model before the order ships. Call 845-935-0301.

Same-Day Shipping on Stocked Parts

Stocked units ship same day from US warehouses. For facility repairs and construction punch-list items where a door is out of service, same-day dispatch reduces the window a critical opening is incomplete.

Browse all commercial exit device parts, the complete Von Duprin parts catalog, and the full commercial door hardware parts catalog at SecurityParts.com.

About the Author

This guide is published by the commercial door hardware team at SecurityParts.com, a supplier of OEM Von Duprin, Schlage, LCN, Falcon, and Detex parts since 2001. Technical information in this guide is sourced from the official Von Duprin 88 Series catalog (document 105966), the Von Duprin 88 Rim Series Exit Devices Parts Manual, and the Von Duprin 8875 Mortise Lock Series Exit Devices Parts Manual. For trim configuration support and same-day shipping availability, call 845-935-0301 or visit SecurityParts.com.