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Sargent 8204 LNL Storeroom Mortise Lockset — Commercial Grade, LA Keyway
The Sargent 8204 LNL is a heavy-duty, commercial-grade storeroom function mortise lockset engineered for demanding institutional, government, healthcare, and education applications. Built on Sargent's proven 8200 Series mortise lock platform, the 8204 delivers reliable, key-controlled access control where security and long-term serviceability are non-negotiable. The LNL trim designation indicates a lever-on-lever configuration, and the LA keyway provides a standard Sargent keyway for straightforward master keying and key system integration.
Storeroom Function — What It Means for Your Application
The Storeroom function (ANSI/BHMA function code F86) keeps the outside lever always locked — entry requires a key at all times. The inside lever is always free for immediate egress. This makes the 8204 the correct specification for server rooms, pharmacies, storage areas, supply closets, IT closets, secure offices, and any space where unrestricted exterior access must be prevented at all times. Unlike an office or classroom function, there is no toggle or thumbturn that can inadvertently leave the door unlocked.
Key Benefits
- Always-locked outside lever — no risk of an occupant leaving the space unsecured
- Free egress from inside — inside lever always operable, supporting life-safety code compliance
- Sargent 8200 Series mortise body — heavy-duty commercial construction with a proven, parts-friendly platform
- LNL lever trim — cleanly designed lever-on-lever rose trim compatible with Sargent's broad trim catalog
- LA keyway — integrates into existing Sargent LA keyway master key systems without additional cylinder changes
- Master keying ready — 40 Series mortise cylinder accepts Sargent 6-pin or 7-pin bitting for complex keying hierarchies
- Compatible with custom push plates — Rockwood stainless steel push plates can be ordered to the LNL prep when cosmetic or surface coverage upgrades are needed
Typical Applications
- Server rooms and IT infrastructure spaces
- Hospital and healthcare pharmacies, medication storage, and supply rooms
- Government and federal facility secure storage
- University and K–12 school storage and equipment rooms
- Office building file rooms and records storage
- Retail back-of-house and cash-handling rooms
Specification & Compatibility Notes
The Sargent 8200 Series mortise lock body accepts the standard Sargent 40 Series mortise cylinder (solid brass, 1-5/32" diameter, 6-pin standard, 7-pin available on size 42 and larger). Cylinder length selection depends on door thickness and trim prep. The lock body is compatible with Sargent electrified variants (see the 8271 series) for facilities that may require future conversion to electric access control without replacing the entire lockset. When specifying for fire-rated openings, confirm that the selected assembly carries the required UL fire label and complies with NFPA 80.
Technical Details
| Feature | Details |
|---|---|
| Manufacturer | Sargent (ASSA ABLOY) |
| Series | 8200 Series Mortise Lockset |
| Model | 8204 LNL |
| Lock Type | Mortise Lockset |
| Function | Storeroom — outside always locked by key; inside always free |
| ANSI/BHMA Function | F86 Storeroom |
| Trim Designation | LNL (Lever / Lever) |
| Keyway | LA Keyway (Sargent standard) |
| Cylinder Type | Sargent 40 Series Mortise Cylinder (6-pin standard; 7-pin available) |
| Grade / Duty | Commercial Grade / Heavy Duty |
| Category | Mortise Locksets |
| Compatible Electrified Body | Sargent 8271 (24V electrified variant) |
| Push Plate Compatibility | LNL prep — Rockwood custom stainless steel push plates available |
| 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 | F07 - Storeroom |
| Trim Design | LNL |
| Series | Sargent - 8200 Series |
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