S.Parker NLL520 Lever Trim For Panic Device - Passage

The S.Parker NLL520 is the passage function lever trim in the LL520 series, engineered to mount on S.Parker rim exit devices and give the outside of the door a functional lever without adding any keyed locking. "Passage" means always unlocked: the lever retracts the exit device latch from the outside at all times, with no cylinder and no keying involved. That's the right spec for interior corridor doors, tenant pass-through openings, and paired-door setups where one leaf needs outside access but doesn't need to be locked. Fits a standard ANSI #161 cutout and installed with the same hardware pattern as the rest of the LL520 family. 

What Is the S.Parker NLL520 Lever Trim

Exit devices (panic bars) ship as "exit only" by default, which means the bar operates the latch from the inside but there's no way to open the door from the outside without a key or trim. A trim is the piece of hardware that mounts on the outside of the door to give you that outside access. S.Parker offers the LL520 family of lever trims to cover every common function: entry (keyed), passage (always unlocked), storeroom, classroom, and so on. The NLL520 is specifically the passage variant in that family. Choose it when the outside of the door needs a lever pull but no keyed lock function. Common use cases include interior double doors with a panic bar on one leaf, corridor pass-through openings, back-of-house doors in restaurants and retail, and school or office interior egress routes where the outside needs lever access at all times.

NLL520 Specifications and Compatibility

Full spec for your door schedule:

• Product type: passage function outside lever trim for S.Parker rim exit devices

• Function: passage (both sides free, outside lever always retracts latch, no keying)

• Door prep: standard ANSI #161 cutout

• Mounting: thru-bolted through the door to the exit device chassis

• Compatible exit devices: S.Parker UL520, UL523, UL524, UL525, UL526, and 520V rim panic devices

• Handing: ships non-handed

• Available finishes: DCH Dull Chrome (standard) and DUR Duranodic Bronze 

• SKU: NLL520

• Model variants: NLL520DCH, NLL520DUR, NLL520-DCH, NLL520-DUR

Which S.Parker Panic Devices Does the NLL520 Fit

The NLL520 is built for the S.Parker 520-series rim exit device family. That covers the UL520 (standard rim panic), UL523, UL524, UL525, UL526, and the 520V (surface vertical rod variant). If your exit device is from one of these series, the NLL520 is a direct fit. If you're replacing an older trim on an existing 520-series panic bar, check the device label for the UL prefix and model number to confirm compatibility. If you need an entry (keyed) function trim instead of passage, order the LL520 keyed variant rather than this NLL520. If your panic device is a different S.Parker series (or a different brand entirely), this trim won't mount correctly and you'll need the trim designed for your specific exit device.

Finishes and Model Variants

The NLL520 ships in two standard finishes: Dull Chrome is the most common spec for office, school, and institutional installations because it matches the most hollow metal doors and neutral architectural finishes. Duranodic Bronze is the right pick when the door is painted dark, when matching existing bronze-finished hardware, or when the spec calls for a warmer architectural tone. Select your finish at checkout.

Where to Buy the S.Parker NLL520

We've stocked S.Parker architectural hardware since 2001, and the NLL520 ships the same day from the S.Parker Device Trims lineup under the broader Exit Device Trims & Mullion category.