Sargent 8200LNL LN Rose x L Le...
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$1,560.49
$894.05

Sargent 8200LNL LN Rose x L Lever Mortise Lock with LA Keyway Grade 1 Commercial Security

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Model: SGT-8200LNL
From the 8200 Series Collection
$1,560.49
$894.05
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,560.49
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Sargent 8200 Series Grade 1 Mortise Lock with LN Rose and L Lever - LA Keyway

Professional-Grade Mortise Lock Solution for Commercial Applications

The Sargent 8200 Series mortise lock represents the industry benchmark for commercial security hardware, featuring Grade 1 certification and cold forged steel construction. This professional mortise lock accommodates doors 1-3/4" (44mm) thick standard with 2-3/4" (70mm) backset, includes LN rose with L lever configuration, LA keyway 1-bitted cylinder, and auxiliary deadlatch for enhanced security performance in demanding commercial environments.

Professional Features & Benefits

  • Door Compatibility: Designed for doors 1-3/4" (44mm) thick standard with versatile thickness range from 1-3/8" (35mm) to 6" (152mm) for diverse commercial applications.
  • Minimum Stile Requirements: 4-1/2" (114mm) minimum stile for standard functions, 4-3/4" (121mm) minimum stile for electrical function locks ensures proper installation clearance.
  • Heavy-Duty Construction: Cold forged steel hubs provide exceptional durability and strength for high-traffic commercial applications with Grade 1 performance standards.
  • Multi-Function Versatility: 54 available functions including 4 electrical functions - the most in the industry for broad application flexibility and future expansion capability.
  • Field-Reversible Design: Lock is easily re-handed without removing parts or opening the lock case for installation convenience and reduced labor costs.
  • Professional Grade Materials: Outside front plate available in brass, bronze or stainless steel with 8" (203mm) x 1-1/4" (31mm) dimensions per ANSI/BHMA Standard A156.115.
  • Comprehensive Function Range: Multi-function lockbody accommodates functions 04, 05, 15 & 37 without additional parts, with expansion capability for functions 38, 06, 13, 31 & 36.
  • Manufacturer Warranty: 10 year limited warranty on mechanical components, 2 year limited warranty on electrified locks for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent mortise lock products deliver professional-grade reliability with cold forged steel construction and Grade 1 certification for demanding commercial applications. The comprehensive 10 year limited warranty on mechanical components demonstrates the manufacturer's confidence in long-term performance. Engineered for demanding commercial applications where dependable security performance is essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks
Subcategory:
Mortise Locks and Trim
Commercial/Residential:
Commercial
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Electronic:
No
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent SGT-8200LNL – Frequently Asked Questions

1) Will the Sargent 8200 mortise lock fit a 1-3/4 inch commercial door, and how thick a door can it go on?
Standard prep for the Sargent 8200 Series is a 1-3/4 inch (44mm) door, which is the usual commercial thickness. The series covers doors from 1-3/8 inch (35mm) all the way up to 6 inches (152mm), so it also works on thick historic or lead-lined openings. Backset is 2-3/4 inches (70mm).
2) What is the minimum stile width for a Sargent 8200 mortise lock on an aluminum or narrow door?
You need at least 4-1/2 inches (114mm) of stile for the standard mechanical functions. If you are specifying one of the electrical functions, the minimum goes up to 4-3/4 inches (121mm). Anything narrower than that and a mortise lock is the wrong choice for the opening.
3) Which lock functions can I order in the Sargent 8200LNL, and how do I pick between them?
Five functions are offered with the LN rose and L lever: Office/Entry (8205), Office/Entry, Storeroom/Closet, Classroom, and Passage/Hall/Closet. Storeroom keeps the outside lever locked at all times so it latches behind you every time, which suits closets, IT rooms, and mechanical spaces. Classroom locks and unlocks the outside lever by key from the corridor. Office/Entry lets a user leave the lever unlocked during business hours. Passage is non-keyed latching only, for halls and doors that need no security.
4) Is the Sargent 8200 mortise lock handed, or can I re-hand it in the field?
It is field reversible. The 8200 lock body re-hands without removing parts or opening the case, so one lock covers left and right hand openings. That matters if you stock locks for a portfolio of buildings, since you are not holding separate handed inventory.
5) Is the Sargent 8200 mortise lock heavy duty enough for a high traffic school or hospital corridor?
Yes. The 8200 Series is ANSI/BHMA Grade 1 and classed heavy duty, with cold forged steel hubs in the lock body, which is the part that takes the abuse on a lever pulled hundreds of times a day. Grade 1 is the top commercial rating and the level most institutional specs call out for corridor and classroom doors.
6) What does the LA keyway 1-bitted cylinder mean, and can I key the 8200LNL into my existing master system?
The lock ships with a Sargent LA keyway cylinder that is 1-bitted, meaning it is factory cut to a temporary single-cut key. That is how locksmiths order it when they intend to pin the cylinder themselves into an existing Sargent LA masterkey system. If your building already runs Sargent LA, this drops straight into that system once you pin it. If you are on a different keyway or brand, you will be swapping the cylinder.
7) My existing doors have thick slabs over 2 inches. Which mortise lock actually covers that?
The Sargent 8200 Series is the one to look at for thick doors: it accommodates 1-3/8 inch (35mm) up to 6 inches (152mm). Most Grade 1 mortise locks are single-thickness 1-3/4 inch prep, including the Cal-Royal NM8050 and NM8080, the Corbin Russwin ML2003, and the Schlage PM010. Hager's 3800 Series gets you partway, with the 3810S rated 1-3/4 to 2-1/2 inches. Past 2-1/2 inches the 8200 is the practical answer.
8) What should I use instead of the Sargent 8200 if I need a privacy function for a restroom or bedroom door?
The Sargent 8200 functions covered by the LN rose and L lever configuration are office/entry, storeroom/closet, passage/hall/closet and classroom, so a dedicated privacy lock is a different part. The Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock with 2-3/4 inch backset for doors 1-3/4 to 2 inch. If the privacy door needs credential control, the Schlage CO-100 is a Grade 1 heavy duty standalone electronic mortise lock in privacy function with a keypad reader for 1-3/4 inch doors.
9) Can I use an electronic mortise lock in place of the Sargent 8200 on the same door prep?
The Sargent 8200 is a mechanical, non-electronic Grade 1 mortise lock for doors 1-3/4 inch standard with a 2-3/4 inch backset and a 4-1/2 inch minimum stile. Electronic mortise locks in the same Grade 1 class include the Schlage CO-100 standalone keypad lock for 1-3/4 inch doors, the TownSteel FME-2000 Grade 1 RFID mortise lockset in classroom function for 1-3/4 inch doors, the Dormakaba E-Plex E5086 back-to-back pushbutton and card lock, and the Schlage ENGAGE LEMD-GRW wireless mortise lock with 125kHz proximity reader and a 3 hour fire rating. Verify door thickness against the electronic model you pick - the Alarm Lock DL2700CR, for example, covers 1-5/8 to 1-7/8 inch, a narrower range than the 8200.
10) Which mortise lock should I use instead of the Sargent 8200 on a behavioral health or ligature-resistant opening?
The Sargent 8200 is a standard commercial lever lock and is not built as an anti-ligature product. For those openings, the TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in passage function in stainless steel for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with ligature resistant arch trim. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel.
11) I need the outside lever to unlock electrically - what takes the place of the Sargent 8200 there?
The Sargent 8200 as configured with the LN rose and L lever is a mechanical lock, not electrified. For an electrically controlled outside lever, the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request-to-exit and 12/24VDC operation for 1-3/4 inch doors, and the Command Access ML190 is a heavy-duty motorized mortise lock in storeroom function with field selectable fail safe or fail secure operation on 24VDC. The BEST 45HW is a wired electromechanical mortise lock with 12V/24V operation. Keep in mind the 8200 family calls for a 4-3/4 inch minimum stile on electrical function locks versus 4-1/2 inch on standard functions.
12) What front plate size and prep does the Sargent 8200 need, and does it match ANSI door prep?
The outside front plate measures 8 inches (203mm) x 1-1/4 inches (31mm) per ANSI/BHMA Standard A156.115, and is available in brass, bronze, or stainless steel. That is standard ANSI mortise prep, so it drops into an existing ANSI-prepped door edge without re-routing the pocket.
13) Can I change the function of a Sargent 8200 lock later without buying a whole new lock body?
To a point, yes. The multi-function 8200 lock body covers functions 04, 05, 15 and 37 with no extra parts, and can be expanded to functions 38, 06, 13, 31 and 36. Across the series there are 54 functions including 4 electrical ones. For a facility standardizing on one lock body, that means a function change is often a parts swap rather than a full replacement.
14) I need a Grade 1 classroom mortise lock but not on Sargent keying. What else is there?
Several Grade 1 classroom mortise options exist outside the Sargent LA system. The Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors. Cal-Royal's NM8070 is a Grade 1 classroom mortise lockset with auxiliary deadlatch, also 1-3/4 inch. If you want a classroom security indicator, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset with ANSI strike, for 1-3/4 inch doors. All three are single-thickness 1-3/4 inch, so none of them cover the thick-door range the 8200 does.
15) Should I use a mechanical Sargent 8200 or go electronic on this door?
The 8200LNL is non-electronic, key operated, and needs no power or batteries, which is why it is the default for corridor, storeroom, and classroom doors where you just want a durable key-managed lock. Go electronic when you need audit trail, code changes, or credentials instead of keys: the TownSteel FME-2000 is a Grade 1 RFID mortise lockset for 1-3/4 inch doors, the Alarm Lock DL3500CR is a Grade 1 classroom electronic mortise lock with 300 user codes, and the BEST 45HW is a wired electromechanical mortise lock running 12V or 24V for access control tie-in.
16) Does the Sargent 8200LNL come with a deadlatch, and will it hold up against a door being pried?
Yes, the 8200 includes an auxiliary deadlatch. That is the small secondary plunger next to the latchbolt: when the door closes it depresses against the strike and deadlocks the main latch so the latch cannot be shimmed or carded from outside. On a keyed exterior or storeroom door it is the difference between a latch you can slip with a plastic card and one you cannot.
17) I need a non-keyed passage mortise lock instead of a keyed one. What are my options?
The 8200LNL is offered in a Passage/Hall/Closet function, which latches only with no key. Comparable non-keyed mortise passage locks include the Falcon MA101, a Grade 1 heavy duty field reversible mortise passage lock, the Schlage PM010 Grade 1 passage latch mortise lock for 1-3/4 inch doors, and the Hager 3810S, a Grade 1 passage mortise lock with rose and 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors. For behavioral health or detention-adjacent spaces, the TownSteel MRX-L-01 is a Grade 1 anti-ligature lever mortise passage lockset.
18) What is the difference between the LN rose trim on the 8200LNL and an escutcheon trim mortise lock?
LN is Sargent's sectional rose trim, so the lever mounts on a small round rose rather than a full-length plate. Rose trim exposes more of the door face and is what most offices and corridors get. An escutcheon covers a tall plate over the lock area, hides prior prep or damage, and is often specified where a thumbturn or indicator sits with the lever, as on the Hager 3810E passage mortise lock with escutcheon or the Marks USA LA318GJ with its steel escutcheon. The Sargent 7800/8200 template covers both sectional rose and escutcheon trims.
19) I only need a non-keyed passage mortise lock - is the Sargent 8200 more than I need?
The Sargent 8200 does offer a passage/hall/closet function, and it carries the same Grade 1 cold forged steel lockbody as the keyed functions, so it is a fit where you want one lock family across the whole building. If you want a dedicated non-keyed passage lock instead, the Schlage PM010 is a Grade 1 passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock that is field reversible and fire rated, and the Hager 3810S is a Grade 1 passage mortise lock with rose and 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch. The Hager 3810E is the same passage lock with escutcheon trim rather than a rose.
20) Is a BEST 45H mortise lock body a direct replacement for the Sargent 8200?
They are not interchangeable parts. The BEST 45H is sold as a heavy duty mortise lock body in public entrance function and is field reversible, and the 45HCA is a lockbody in intruder function - those are chassis-only items that take BEST trim and core. The Sargent 8200 is supplied as a complete lock with LN rose, L lever and an LA keyway 1-bitted cylinder, and it is field-reversible without removing parts or opening the case. If you are standardizing a building on Sargent LA keying, stay with the 8200; if the doors already carry BEST interchangeable cores, the 45H family keeps that core system.
21) What is the difference between the Sargent 8200 and a Schlage L0170 dummy trim?
The Schlage L0170 is a Grade 1 heavy duty half dummy trim in dummy function for 1-3/4 inch doors - it is a pull with no latch and no locking mechanism. The Sargent 8200 is a working Grade 1 mortise lock with an operating latchbolt, auxiliary deadlatch and functions including office/entry, storeroom, passage and classroom. Emtek's 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan are likewise dummy mortise entrance locksets. Use a dummy only on an inactive leaf; anything that has to latch needs the 8200 or another functioning lock.
22) Is there an equivalent to the Sargent 8200 for a residential or decorative entry door?
The Sargent 8200 is a commercial, heavy duty Grade 1 mortise lock with a 2-3/4 inch backset. For residential entry work, the Baldwin 6301LS is an entry/apartment lever by lever mortise lock body with a 2-1/2 inch backset for doors 1-3/4 inch and over, and the 6301 is the same function in knob by knob. The Baldwin 6310 is an entry/storeroom knob by knob mortise lock body with a 2-1/2 inch backset for doors 1-3/8 inch and over. Note the 2-1/2 inch backset on the Baldwin bodies against the 8200's 2-3/4 inch - the door prep is not the same.
23) For an office or entrance door, how does the Sargent 8200 office/entry compare with the Cal-Royal NM8050?
Both are Grade 1 mortise locksets in office/entrance function with an auxiliary deadlatch. The Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset specified for 1-3/4 inch doors. The Sargent 8200 in office/entry is rated for 1-3/4 inch doors standard with a thickness range from 1-3/8 inch to 6 inch, uses cold forged steel hubs, ships with an LA keyway 1-bitted cylinder, and is field re-handed without opening the case. The Hager 3850E is a further option as a Grade 1 office mortise lock with lever and escutcheon, non-keyed, 2-3/4 inch backset, for doors 1-3/4 to 2-1/2 inch.
24) Will a Codelocks CL2255 or Kaba Ilco 185 work where the Sargent 8200 is specified?
Neither is a like-for-like swap. The Codelocks CL2255 is a medium duty electronic tubular mortise latch in brushed steel, a lighter duty class than the heavy duty Grade 1 Sargent 8200. The Kaba Ilco 185 Series is a deadbolt-function mortise lock with no handing, so it provides bolt-only security with no latching lever. The 8200 with the L lever gives you a latching lever set in office/entry, storeroom, passage or classroom function with auxiliary deadlatch.
25) What finish does the Sargent 8200LNL come in and will it match other hardware in the building?
It is offered in 26D, satin chromium plated over nickel. That is the standard satin chrome commercial finish and it reads the same as the satin stainless and 630/626 hardware on most commercial openings, so it blends with existing closers, exit devices, and hinges in a typical office or school.
26) Is there a template for prepping the door for a Sargent 8200 mortise lock?
Yes. Sargent publishes an installation template covering the 7800 and 8200 Series mortise locks with all sectional rose trims and escutcheon trims, plus the full 7800/8200 mortise lock catalog. Use the template to lay out the lock pocket, cross-bores, and trim holes before you rout, because mortise prep is unforgiving once cut.
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Does the Sargent SGT-8200LNL come with a warranty?
Absolutely. The Sargent SGT-8200LNL is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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