,%20LA%20Keyway%20(626%20-%20US26D%20Satin%20Chrome,%20LC%20-%20Less%20Cylinder)?unique=b83eb1d)
,%20LA%20Keyway%20(626%20-%20US26D%20Satin%20Chrome,%20LC%20-%20Less%20Cylinder)?unique=b83eb1d)
Sargent 8237 LNL Mortise Lockset – Classroom Function, LA Keyway
The Sargent 8237 LNL is a heavy-duty commercial mortise lockset configured for the Classroom Function — one of the most specified lock functions in K–12 schools, universities, and institutional facilities. Built on Sargent's proven 8200 Series mortise platform, this lockset delivers reliable, code-compliant security for classroom and educational occupancy doors. The LNL lever trim pairs with the LA keyway, providing a clean, institutional aesthetic with the security performance commercial openings demand.
What Is the Classroom Function?
The Classroom function (ANSI F84) is designed specifically for school and institutional corridor doors. Here is how it works:
- Outside lever: Locked and unlocked by key from the outside — the lever is rigid when locked and retracts the latch when unlocked.
- Inside lever: Always free — occupants can exit at any time without a key, satisfying life-safety egress requirements.
- Auxiliary deadlatch: Guards against latch manipulation (credit-carding).
- Key control: Locking and unlocking is managed entirely from the corridor side, keeping the room secured without requiring occupants to handle a key.
This function is the standard specification for most classroom corridor doors in public and private educational buildings and is compatible with ANSI/BHMA A156.13 Grade 1 mortise lockset requirements.
Key Benefits
- Grade 1 commercial mortise body — built for heavy-use institutional environments
- Classroom function (F84) — industry-standard educational security; inside lever always free for egress
- LA keyway — Sargent proprietary keyway for controlled key distribution and master key system integration
- LNL lever trim — durable lever design suited for high-traffic institutional doors
- Auxiliary deadlatch — anti-manipulation protection against latch bypass
- Mortise lock body — fully contained chassis for superior long-term durability vs. cylindrical bored locks
- Master key compatible — integrates into Sargent key systems for facility-wide access management
Typical Applications
- K–12 school classroom corridor doors
- University and college classroom buildings
- Government and municipal office doors
- Healthcare facility staff access doors
- Institutional and correctional facility interior openings
Technical Details
| Feature | Details |
|---|---|
| Manufacturer | Sargent |
| Model / Series | 8237 LNL (8200 Series Mortise Lockset) |
| Lock Type | Mortise Lockset |
| Function | Classroom (ANSI F84) — Key outside locks/unlocks lever; inside lever always free |
| Lever Trim | LNL |
| Keyway | LA (Sargent proprietary) |
| Hardware Category | Commercial Mortise Locksets |
| Auxiliary Deadlatch | Yes |
| Typical Compliance | ANSI/BHMA A156.13 Grade 1 Mortise Lockset standard |
| Primary Application | Classroom, educational, institutional, government |
Specifier and Purchasing Notes
The Sargent 8237 LNL is a commonly specified model for educational facility new construction and retrofit projects. The LA keyway is a Sargent-controlled proprietary keyway — verify your facility's existing key system keyway before ordering to ensure cylinder compatibility. If your project requires an alternate keyway (such as Schlage C or Sargent's LB, LD, or LE), contact us to confirm availability. For projects requiring comparable mortise locksets with alternative brand specifications, DoorwaysPlus can quote equivalent options from Accentra, Corbin Russwin, Hager, and PDQ — brands noted for stable product platforms and long-term parts availability.
| Finish with BHMA code | 626 - US26D Satin Chrome or 630 - US32D Satin Stainless or 613E - US10BE Oil Rubbed Bronze Equal or 605 - US3 Polish Brass or 612 - US10 Satin Bronze or 625 - US26 Polish Chrome |
| Sargent Keyways | LC - Less Cylinder or LA Keyway or 60 - LFIC less Core or 70 - SFIC less Core |
| Brand | Sargent |
| ANSI Mortise Lock Function | F05 - Classroom |
| Trim Design | LNL |
| Series | Sargent - 8200 Series |
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