Sargent 8241 Classroom Securit...
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$1,428.83
Sargent Sargent 8200 Series - (8241) Classroom Security Function Rose Trim, Heavy Duty Double Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8241

Sargent 8241 Classroom Security Function Mortise Lock with Heavy Duty Double Cylinder and Deadbolt - Grade 1

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Model: 8241 EA 26D
From the 8200 Series Collection
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$1,428.83
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Sargent 8241 Grade 1 Classroom Security Mortise Lock with Heavy Duty Double Cylinder and Deadbolt

Industry Benchmark Heavy Duty Mortise Lock with Maximum Security Performance

The Sargent 8241 represents the industry benchmark for maximum security, performance, and durability in commercial door hardware. This Grade 1 classroom security function mortise lock features a heavy duty double cylinder with deadbolt, 2 3/4" backset depth, and 1 3/4" door thickness compatibility. Built with high-quality components and patented design construction, this lock integrates with all SARGENT key systems including Degree, Signature, KESO, and XC. UL 10C fire-rated up to 3 hours with ANSI/BHMA A156.13 Series 1000 certification ensures code compliance for demanding commercial applications.

Professional Features & Benefits

  • Exceptional Durability Testing: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched reliability in high-traffic applications.
  • Heavy-Duty Construction: Patented design and construction with robust lever-style mortise lock body engineered to far exceed independently verified testing standards.
  • Universal Key System Integration: Integrates with all SARGENT key systems (Degree, Signature, KESO, and XC) for flexible master keying options.
  • Multi-Functional Design: Available in 56 different functions including electromechanical, security and monitoring with multifunctional lockbody for easy on-site function changes.
  • Fire Rating Compliance: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Field Reversible Handing: Standard 2 3/4" backset with field reversible handing reduces inventory requirements and simplifies installation.
  • EcoFlex Energy Technology: Electromechanical version operates from 12 to 24VDC with EcoFlex technology reducing power consumption up to 96% for significant energy savings.
  • Comprehensive Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm voltage (12 to 24VDC for electromechanical version) and current capacity before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including any configurable options per application requirements.
  6. Restore power and test all functions including normal operation, alarm/alert functions, and integration with connected systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Educational Facility Classroom Security
  • Commercial Office Building Access Control
  • Healthcare Institution Patient Area Security
  • Government and Municipal Building Access
  • Multi-Tenant Residential Property Security
  • Industrial Facility Controlled Access Areas
  • Retail Establishment Security Systems

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design construction tested to 16 million cycles for unmatched durability. Comprehensive 10-year limited warranty with 2-year electrical component coverage provides added confidence for demanding commercial applications. Engineered with multiple certifications including ANSI/BHMA Grade 1, UL 10C fire rating, and ADA compliance where dependable security performance is essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Keyed Function:
Double Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Classroom Security
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Classroom Security
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8241 EA 26D – Frequently Asked Questions

1) What does the classroom security function on the Sargent 8241 mortise lock actually do?
Classroom security means the door is locked and unlocked from inside the room with a key, not just from the corridor. The 8241 is a double cylinder lock with a deadbolt, so there is a keyed cylinder on both faces. A teacher can lock the corridor side from inside the classroom without stepping into the hallway. That is the whole point of the function in a lockdown, and it is why schools specify it over a plain classroom function that can only be keyed from outside.
2) Will the Sargent 8241 mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly what it is built for. The 8241 uses the standard 2-3/4 inch backset and is listed for 1-3/4 inch door thickness, which is the standard commercial door. If your existing prep is a 2-3/4 inch backset mortise pocket, the lock body drops into it.
3) Do I need to order the Sargent 8241 handed for a left or right hand door?
No. Handing is field reversible on the 8241, so one lock covers either hand. For a property manager or a school district stocking spares, that means a single part number on the shelf instead of two.
4) Can I get the Sargent 8241 to work on my existing master key system?
Yes. The 8241 integrates with all SARGENT key systems, including Degree, Signature, KESO, and XC, so it can be brought onto an existing SARGENT masterkey system. On the order you pick the cylinder arrangement: standard cylinder, less cylinder if you are supplying your own, 70 prep for small format interchangeable core less core, or 60 prep for large format interchangeable core less core. Keying is specified separately as keyed different, keyed alike, or to a key code you provide. If you run an SFIC system across the building, order the 70 prep less core and stack your own cores.
5) Is the Sargent 8241 mortise lock fire rated for a labeled classroom door?
UL 10C positive pressure fire rated up to 3 hours, with NFPA 80 compliance. It also carries ANSI/BHMA A156.13 Series 1000 certification and is Grade 1. That combination is what a code official looks for on a labeled corridor or stair door in a school or healthcare facility.
6) What do I have to specify when ordering a Sargent 8241 besides the finish?
Four things decide the part: lever design, rose, cylinder arrangement, and keying. Levers run A, B, E, F, J, L, P, and W. Roses are E at 3-1/16 inches (78mm), L at 3-1/2 inches (89mm), LN at 2 inches (51mm), and O at 2-3/4 inches (67mm). Cylinder is standard, less cylinder, 70 SFIC prep less core, or 60 LFIC prep less core. Keying is keyed different, keyed alike, or a specific key code. Handing you can skip, since it reverses in the field.
7) What should be specified instead of a Sargent 8241 when the classroom needs credential-based access rather than keys?
The TownSteel FME-2000 Series is a Grade 1 heavy duty classroom mortise lockset with RFID technology for 1-3/4 inch doors, and the TownSteel FME-4000 Series is a Grade 1 heavy duty electronic intruder classroom mortise lock with RFID, also for 1-3/4 inch doors. The Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with classroom function and 300 user codes, for doors 1-5/8 to 1-7/8 inch. Any of these replaces the mechanical key credential the Sargent 8241 uses, since the 8241 is a non-electronic keyed mortise lock. Credential locks change how access is revoked: a lost card or code is deleted at the lock, where the 8241 relies on the SARGENT key system for control.
8) What is the closest cross-brand equivalent to a Sargent 8241 classroom security mortise lock?
The Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with auxiliary deadlatch, and the Corbin Russwin ML2003 from the ML2000 Series is a Grade 1 mortise classroom lockset rated for 1-3/4 inch doors. Both match the Sargent 8241 on Grade 1 mortise construction and classroom keying intent. The distinction to keep in mind is that the Sargent 8241 is a double cylinder classroom security function with a deadbolt, meaning a key is required on both sides and a separate deadbolt throw is part of the lock body; the NM8070 and ML2003 are classroom function locksets built around a latch with auxiliary deadlatch rather than a keyed deadbolt.
9) Sargent 8241 versus BEST 45HCA intruder function for a classroom lockdown application
The BEST 45HCA is a heavy duty mortise lockbody with intruder function, which is the lockdown-from-inside arrangement where a teacher secures the corridor side without stepping into the hallway. The Sargent 8241 is a classroom security function with heavy duty double cylinder and deadbolt, so securing the door is done with a key on either face. Two other things separate them: the 45HCA is offered as a lockbody, so trim is specified apart from it, while the Sargent 8241 is a complete lever assembly with the lever chosen from A, B, E, F, J, L, P and W and the rose from E at 3-1/16 inch, L at 3-1/2 inch, LN at 2 inch or O at 2-3/4 inch.
10) What looks like a Sargent 8241 substitute but is not a keyed lock at all?
Several mortise products in the same size family carry no cylinder. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation, and the Hager 3810S from the 3800 Series 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 Schlage L0170 is half dummy trim, a Grade 1 non-keyed lever with no latching function whatsoever. None of these secure an opening. The Sargent 8241 is keyed, with a double cylinder keyed function, so a passage or dummy unit cannot stand in for it on a door that must lock.
11) Which mortise lock supports access control release from a card reader or panel instead of a Sargent 8241?
For a door tied into an access control system, the Schlage L9092EU electric lock/unlock outside lever mortise lock is heavy duty, keyed outside, with request to exit and 12/24VDC operation on 1-3/4 inch doors. The Command Access ML190 Series is a heavy duty motorized mortise lock with field selectable EL/EU operation on 24VDC, and the BEST 45HW Series is a heavy duty wired electromechanical mortise lock with 12V/24V operation. All three need power run to the opening, usually through an electric hinge or power transfer. The Sargent 8241 is a non-electronic mechanical lock, so choosing it means no wiring in the frame but no remote release either.
12) Is a Baldwin 6310 mortise lock body a drop-in for a Sargent 8241?
No, the door prep is different. The Baldwin 6310 entry/storeroom mortise lock body uses a 2-1/2 inch backset and is offered knob by knob for doors 1-3/8 inch and over, with a lever by lever version as the 6310LS and a right hand reverse lever version as the 6310190RRLS. The Sargent 8241 uses a standard 2-3/4 inch backset with field reversible handing on a 1-3/4 inch door. A 2-1/2 inch backset lock body will not line up with a pocket cut for a 2-3/4 inch backset, so the two are not interchangeable in an existing frame without re-prepping the door.
13) Can a Sargent 8241 be used on an aluminum storefront or glass entry door?
Those openings take different hardware. The Alarm Lock DL1300NW is a Trilogy Networx wireless electronic mortise lock with keypad built for Adams Rite deadlatches, the Dormakaba E-Plex 2066 is a wide stile mortise lock, and the Kaba Ilco BR Series is a glass door bottom rail lock. The Sargent 8241 is specified for 1-3/4 inch door thickness with a 2-3/4 inch backset, which is a hollow metal or wood door prep rather than a narrow aluminum stile. Glass front installers working a storefront should size the lock to the stile and rail, not to the 8241 prep.
14) How durable is the Sargent 8241 for a high traffic school corridor?
It completed the UL Cycle Above and Beyond test at 16 million cycles, verification ID V584148, on top of the Grade 1 heavy duty rating. For a classroom or corridor door taking hundreds of cycles a day, that is the number to hold against a Grade 1 minimum.
15) Can the function of a Sargent 8200 lock body be changed later without replacing the whole lock?
Yes. The 8200 lock body is multifunctional and the function can be changed on site, and the series spans 56 functions including electromechanical, security, and monitoring versions. If a room changes use from a classroom to an office, you are working with the lock body already in the door rather than pulling and re-prepping.
16) Which rose size do I need if the Sargent 8241 has to fit a narrow door stile or cover an old escutcheon cutout?
Rose diameter is your lever: LN is the smallest at 2 inches (51mm), then O at 2-3/4 inches (67mm), E at 3-1/16 inches (78mm), and L at 3-1/2 inches (89mm). On a tight stile, LN gives the most clearance. If you are covering scarring or an old wraparound plate, the 3-1/2 inch L rose hides the most.
17) Is a storeroom mortise lock an acceptable substitute for a Sargent 8241 on a classroom door?
It is a different function and should not be swapped in without checking the door's code requirement. The Accentra 8805FL is a Grade 1 storeroom mortise lock from the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option. A storeroom function keeps the outside lever locked at all times and requires a key for every entry. The Sargent 8241 is a classroom security function with a double cylinder and deadbolt, intended for openings where the lock state is changed deliberately by key. Where a storeroom lock does line up well is a mechanical room, IT closet or supply room on the same key system.
18) What mortise lock should be used instead of a Sargent 8241 on a restroom or an office door in the same building?
Match the function to the room. For a restroom or a bedroom, the Cal-Royal NM8440 is a heavy duty 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. For a general office, the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with auxiliary deadlatch, and the Hager 3850E is a Grade 1 non-keyed office mortise lock with lever and escutcheon on a 2-3/4 inch backset. The Sargent 8241 stays on the doors that need classroom security with a keyed double cylinder and deadbolt. Keeping all of them mortise with a 2-3/4 inch backset means one door prep across the building.
19) Sargent 8241 or a keypad mortise lock for a classroom with rotating instructors?
A keypad removes the need to issue a key to every instructor. The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override, the Dormakaba E-Plex 2066 Series is an electronic pushbutton keyless mortise lock, and the Alarm Lock DL2700CR is a Grade 1 Trilogy T2 electronic mortise lock with classroom function and weatherproof design for doors 1-5/8 to 1-7/8 inch. The Sargent 8241 takes a mechanical cylinder instead, ordered as standard cylinder, less cylinder, 70 small format interchangeable prep less core, or 60 large format interchangeable prep less core, and it integrates with the SARGENT Degree, Signature, KESO and XC key systems. Buildings already master keyed on a SARGENT system usually keep the 8241 so the classroom stays on the same grand master as the rest of the facility.
20) What is the difference between a Sargent 8241 and a mortise deadbolt used on its own?
A standalone mortise deadbolt has no lever and no latch. The Kaba Ilco 185 Series is a deadbolt function mortise lock with no handing, and the Alarm Lock DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes and privacy keypad for doors 1-5/8 to 1-7/8 inch. Either one needs a separate latch or pull to operate the door. The Sargent 8241 combines both in one body: it is a lever mortise lock with a heavy duty double cylinder and deadbolt, so a single prep handles latching and the deadbolt throw. On a fire-rated opening this matters, since the 8241 is UL 10C positive pressure fire rated up to 3 hours with NFPA 80 compliance and carries ANSI/BHMA A156.13 Series 1000 certification.
21) Which mortise lockset should be used instead of a Sargent 8241 in a behavioral health or patient room?
Anti-ligature trim is the deciding factor there. The TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, the MRX-A-01 is the same passage function with satin stainless steel ligature resistant arch trim, and 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. All three are passage function, so they do not lock. The Sargent 8241 is a classroom security keyed lock with a lever, and its lever profiles run A, B, E, F, J, L, P and W, none of which are ligature resistant designs. Facilities typically use the 8241 on staff and corridor doors and the anti-ligature sets inside patient areas.
22) Sargent 8241 versus Schlage LE Series or ENGAGE wireless mortise locks for a school retrofit
The Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile enabled deadbolt with LED, Greenwich trim, right hand, with a 3 hour fire rating. The Schlage LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED covering privacy, office and apartment functions on 1-3/4 inch doors, also 3 hour fire rated. Grade separates them: the LEMD is Grade 1 and the LEBMB is Grade 2, while the Sargent 8241 is Grade 1 and heavy duty. Handing is the other practical difference for a retrofit, since the LEMD-GRW is specified right hand and the Sargent 8241 has field reversible handing, so one part number covers both swings.
23) Which mortise locks match a Sargent 8241 on Grade 1 for an institutional standardization spec?
Within the mortise locks that state Grade 1: Accentra 8805FL storeroom, Cal-Royal NM8050 office/entrance, NM8070 classroom, NM8080 storeroom and NM8440 privacy, Corbin Russwin ML2003 classroom, Falcon MA101 passage, Schlage PM010 passage and L0170 dummy trim, TownSteel FME-2000 and FME-4000 classroom, TownSteel MRX-A-01 and MRX-L-01 passage, Marks USA LA318GJ classroom security indicator and 5PDN hospital passage, Alarm Lock DL2700CR, DL3500CR and DL4500, Dormakaba E-Plex E5086, and Schlage CO-100 privacy. The Sargent 8241 is Grade 1 heavy duty and carries ANSI/BHMA A156.13 Series 1000 certification with UL 10C fire rating up to 3 hours. For a facility writing one standard, the function set is what narrows the list, since a Grade 1 passage or dummy unit meets the grade but not a secured opening.
24) What is a simpler mortise lock than a Sargent 8241 for an interior door that only needs a latch?
Drop the cylinder entirely. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Hager 3810E is a Grade 1 passage mortise lock with escutcheon on a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch, and the 3810S is the same passage lock with a rose instead of an escutcheon. Each keeps the mortise pocket and the 2-3/4 inch backset the Sargent 8241 uses, so an interior door and a classroom door on the same corridor share one prep dimension. The 8241 stays where the opening needs a keyed double cylinder with deadbolt.
25) Do Emtek mortise entrance locksets work as a replacement for a Sargent 8241?
They do not lock or latch. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are all dummy function, meaning the trim is fixed and there is no working lock body behind it. The Falcon MESC600DT is likewise dummy escutcheon lever trim for M9900 Series exit devices. The Sargent 8241 is a working Grade 1 mortise lock, keyed, with a heavy duty double cylinder and deadbolt. Dummy sets are used on the inactive leaf of a pair or on a door that never latches, not as a substitute for a secured classroom opening.
26) Sargent 8241 versus Dormakaba E-Plex E5086 for a door needing card and code access on both sides
The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back to back arrangement, meaning credential entry is presented on both faces of the door. The Sargent 8241 achieves two-sided control mechanically, with a heavy duty double cylinder requiring a key from either side plus a deadbolt. Both are Grade 1. The choice comes down to credential management: the E5086 handles codes and cards at the door, while the 8241 is a non-electronic lock that runs on the SARGENT Degree, Signature, KESO or XC key system already in the building.
27) Is a cylindrical lock an alternative to the Sargent 8241 if the door is not already mortised?
Yes, but only if the function suits. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors, and it bores into the door face rather than requiring the deep pocket a mortise lock needs. The Sargent 8241 is a mortise lock and needs a milled pocket in the door edge. On a wood or hollow metal door that was never mortised, a cylindrical lock avoids that prep, though a passage function provides no security and cannot replace the 8241 classroom security function with double cylinder and deadbolt.
28) Which mortise lock is right for a public entrance rather than a classroom door?
The BEST 45H Series heavy duty mortise lock body is a public entrance function with field reversible operation, where the outside lever is locked and unlocked as needed so the door can be left free during business hours and secured after. The Sargent 8241 is a classroom security function with a heavy duty double cylinder and deadbolt, which is set by key rather than left unlocked for the day. Both are heavy duty and both are field reversible. A property manager running one building often specifies the public entrance function on the lobby and the 8241 on interior rooms that need a keyed deadbolt.
29) Can I match the Sargent 8241 to the stainless and bronze hardware already on my building?
Sixteen finishes are offered, covering brass (03 bright, 04 satin), bronze (09 bright, 10 satin, 10B oil rubbed, 10BE, 10BL, 20D dark statuary), nickel (14 bright, 15 satin), chrome (26 bright, 26D satin), stainless (32 bright, 32D satin), and powder coats in black (BSP) and white (WSP). 26D and 32D are the two that match most existing commercial openings.
30) What Grade 2 or medium duty mortise options exist alongside the Grade 1 Sargent 8241?
The Dormakaba Saffire LX-I-M002 is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2, and the Codelocks CL2255 is a medium duty electronic tubular mortise latch from the CL2000 Series in brushed steel. The Schlage LEBMB-ADD mobile-enabled mortise lock is Grade 2 for 1-3/4 inch doors. The Sargent 8241 is Grade 1 and heavy duty, tested on the UL Cycle Above and Beyond test at 16 million cycles. On a high-traffic corridor or a main classroom entrance, cycle life is what the duty rating is describing.
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Does the Sargent 8241 EA 26D come with a warranty?
Absolutely. The Sargent 8241 EA 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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