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Sargent 8245 LNL Mortise Lockset – Dwelling & Dormitory Entrance Function
The Sargent 8245 LNL is a heavy-duty commercial mortise lockset engineered for dwelling and dormitory entrance applications — one of the most demanding use cases in residential, student housing, multi-family, and institutional facilities. Built on Sargent's industry-trusted 8200 Series mortise lock platform, the 8245 delivers the security, reliability, and finish-depth expected on high-traffic interior and exterior corridor doors.
The LNL trim designation indicates an LN rose with an L lever, providing a clean, institutional appearance that coordinates across a wide range of door preps and architectural styles. The LA keyway (referenced in the product name) is a Sargent proprietary keyway compatible with Sargent's standard 40 Series mortise cylinder system, supporting 6-pin keying, master keying.
Dwelling & Dormitory Entrance Function — What It Means
The ANSI/BHMA Dwelling/Dormitory Entrance function (designated F12 per BHMA A156.13) is designed for residential-style entry control in multi-unit and institutional environments. Typical behavior:
- Outside trim is locked by the toggle or by projecting the deadbolt, and unlocked by the toggle only; the outside key retracts both latchbolt and deadbolt while the outside trim stays locked
- Inside lever is always free — occupant can always egress without a key
- A thumbturn on the inside projects and retracts the deadbolt; the toggle on the lock front locks and unlocks the outside trim
- Meets egress requirements for dormitory corridors, apartment entries, and similar occupied spaces
This function is widely specified for college dormitories, university housing, military barracks, senior living facilities, and multi-family residential buildings where individual unit security and free egress are both required.
Key Benefits
- Sargent 8200 Series platform — a proven, long-running mortise lock body recognized by specifiers and installers for consistent performance and parts availability
- LNL trim — LN rose and L lever trim for a finished, institutional appearance on wood and hollow metal doors
- LA keyway cylinder — compatible with Sargent 40 Series 6-pin mortise cylinders; supports master keying and key control upgrades
- Mortise construction — anti-friction latch bolt and a 12-gauge wrought steel case for Grade 1 commercial durability
- Wide finish availability — Sargent 8200 Series supports a broad range of BHMA standard finishes to match facility hardware schedules
Typical Applications
- College and university dormitory room entry doors
- Military barracks and government residential housing
- Apartment and multi-family residential unit entry doors
- Senior living and assisted living room entries
- Hotel and extended-stay suite entry doors (non-hotel-function configuration)
- Institutional housing and transitional residential facilities
Technical Details
| Feature | Details |
|---|---|
| Manufacturer | Sargent (ASSA ABLOY) |
| Model / Series | 8245 — 8200 Series Mortise Lockset |
| Trim Designation | LNL (LN Rose / L Lever) |
| Lock Function | Dwelling / Dormitory Entrance |
| Cylinder Keyway | LA Keyway (Sargent 40 Series mortise cylinder compatible) |
| Lock Type | Mortise Lockset |
| Product Category | Commercial Mortise Locksets |
| Cylinder Compatibility | Sargent 40 Series (6-pin standard; 7-pin available on 42 and longer) |
| Master Keying | Supported via Sargent 40 Series cylinder system |
| Applicable Standard | BHMA A156.13 Mortise Locks and Latches |
Note: Finish, handing, and cylinder options for the 8245 LNL are configured at time of order. Contact us to confirm your specific finish code, backset, and keying requirements before purchase. Comparable mortise locksets in preferred lines such as Corbin Russwin and PDQ are also available — request a quote for alternatives.
| 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 | F20 - Apartment |
| Trim Design | LNL |
| Series | Sargent - 8200 Series |
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