Sargent 8239-ET Classroom Secu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,975.38
$1,508.70
Sargent Sargent 8200 Series - (8239) Classroom Security Intruder Deadbolt Function Escutcheon Trim, Heavy Duty Double Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8239-ET

Sargent 8239-ET Classroom Security Intruder Deadbolt Function Escutcheon Trim with Heavy Duty Double Cylinder Mortise Lock

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Model: 8239 LE1A 26D
From the 8200 Series Collection
$1,975.38
$1,508.70
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Selected Lever is
Selected Escutcheon is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,975.38
$1,508.70
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Sargent 8239-ET Classroom Security Mortise Lock Escutcheon Trim with Double Cylinder

Grade 1 Commercial Mortise Lock Trim Component

The Sargent 8239-ET escutcheon trim is designed for use with the industry-leading 8200 Series mortise locks, providing classroom security intruder deadbolt function with heavy-duty double cylinder construction. This professional-grade trim component supports 1 3/4" door thickness with 2 3/4" backset depth and integrates with all SARGENT key systems including Degree, Signature, KESO, and XC. The trim meets ANSI/BHMA A156.13 Series 1000 Grade 1 operational standards for commercial applications.

Professional Features & Benefits

  • Heavy-Duty Durability: Compatible with mortise locks tested to 16 million cycles (UL Verification ID: V584148) for exceptional longevity in high-traffic applications.
  • Door Compatibility: Standard 1 3/4" door thickness with 2 3/4" backset depth and field reversible handing for versatile installation options.
  • Advanced Key System Integration: Compatible with all SARGENT key systems including Degree, Signature, KESO, and XC for comprehensive access control flexibility.
  • Grade 1 Construction: ANSI/BHMA A156.13 Series 1000 operational grade certification ensures commercial-grade reliability and performance.
  • Multi-Functional Design: Works with 56 different lock functions including electromechanical, security and monitoring options with on-site function switching capability.
  • Fire Safety Compliance: Compatible with UL 10C Fire-Rated locks up to 3 hours with NFPA 80 compliance for critical fire door applications.
  • Comprehensive Certifications: ADA compliant, ASTM E330 certified, and Florida Building Code approved for broad code compliance.
  • Manufacturer 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

This escutcheon trim component is designed for use with compatible Sargent 8200 Series mortise locks. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

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

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in independent UL testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates the manufacturer's confidence in long-term performance. Engineered for demanding commercial applications where dependable security and durability are 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 Intruder Deadbolt
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 8239 LE1A 26D – Frequently Asked Questions

1) What does the Sargent 8239 classroom security intruder deadbolt function actually do?
The 8239 function lets a teacher throw the deadbolt from inside the classroom with a key, so the room can be locked down without stepping into the corridor. It is a double cylinder arrangement, meaning there is a keyed cylinder on both the inside and the outside of the door. Sargent builds it in the 8200 Series mortise platform with lever trim on an escutcheon plate.
2) Is the Sargent 8239-ET approved for a fire rated classroom door?
The 8200 Series mortise locks are compatible with UL 10C fire rated locks up to 3 hours and comply with NFPA 80. The line is also ADA compliant, ASTM E330 certified and Florida Building Code approved, and meets ANSI/BHMA A156.13 Series 1000 Grade 1 operational standards.
3) Can I get the Sargent 8239-ET keyed into my existing school master key system?
The 8239-ET works with all SARGENT key systems, including Degree, Signature, KESO and XC. When ordering you pick the cylinder arrangement: standard cylinder, less cylinder, 70 for small format interchangeable core prep less core, or 60 for large format interchangeable core prep less core. Keying is specified separately as keyed different, keyed alike, or to a supplied key code. If your locksmith is pinning to an existing system, the less cylinder or IC prep options are the ones to take.
4) Do I need to order cylinders separately for the Sargent 8239-ET double cylinder lock?
Depends on which cylinder option you take. Standard cylinder ships with cylinders included. Less cylinder ships with none, for a locksmith supplying their own. The 70 option is prepped for a small format interchangeable core and the 60 option for a large format interchangeable core, both supplied less core, so you add cores from your existing system. Keying is a separate selection, and if you go less cylinder you choose None on the keying axis.
5) Is there an electronic version of classroom intruder function if we want audit trail or credential access?
Yes. The TownSteel FME-4000 Series is an electronic intruder classroom mortise lockset with RFID technology, Grade 1 heavy duty for 1-3/4 inch doors, and the TownSteel FME-2000 Series is the Grade 1 RFID classroom version. Alarm Lock also offers keypad classroom locks: the DL3500CR Grade 1 Trilogy electronic mortise lock with 300 user codes and classroom function, and the DL2700CR Trilogy T2, both for doors 1-5/8 to 1-7/8 inch. The Sargent 8239 is a non-electronic mechanical assembly keyed with cylinders rather than credentials.
6) I only need standard classroom function, not intruder lockdown. What mortise lock should I use instead?
For plain classroom function without the inside intruder deadbolt, the Cal-Royal NM8070 is a Grade 1 heavy duty classroom mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, and the Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset from the ML2000 Series, also for 1-3/4 inch doors. Both are keyed from the corridor side only. Choose the Sargent 8239 when the teacher needs to secure the door from inside the room, since that is what its classroom security intruder deadbolt function and double cylinder keying provide.
7) Do I have to specify handing when I order a Sargent 8200 Series mortise lock?
Handing is field reversible on the 8200 Series, so the lock can be changed on site to suit a left or right hand opening. That is useful when you are standardizing a school and do not want two part numbers on the shelf.
8) Will a Sargent 8239-ET hold up to classroom traffic?
It is a heavy duty commercial lock, Grade 1 under ANSI/BHMA A156.13 Series 1000, and the 8200 Series mortise locks were tested to 16 million cycles under UL Verification ID V584148. That is the durability level schools and high traffic corridors are usually specified to.
9) What lever, escutcheon and finish choices do I need to pick for the Sargent 8239-ET?
Three appearance decisions on the order. Escutcheon style is LE1, LS, LW1 or WT. Lever design is A, B, E, F, J, L, P or W. Finish covers 16 options: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark bronze, 10BE, 10BL, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 26D satin chrome, 32 bright stainless, 32D satin stainless, BSP black suede powder coat and WSP white suede powder coat. For matching existing school hardware, 26D and 32D are the usual commercial defaults.
10) For a storeroom or utility door that stays locked, is the Sargent 8239 the wrong function?
For a door that should stay locked at all times with key entry only, use a storeroom function instead: the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 heavy duty storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. The Sargent 8239 is configured for classroom security intruder deadbolt function, which is built around the occupant locking the door from inside the room rather than a permanently secured storeroom opening.
11) What mortise locks look like a substitute for the 8239 but will not give classroom lockdown?
Several mortise locks share the same body prep but not the function. The Hager 3850E is an office mortise lock with lever and escutcheon that is non-keyed, with a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch. The Hager 3810E is a passage mortise lock with escutcheon, and the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, neither of which locks at all. The Schlage L0170 is a Grade 1 half dummy trim with no operating latch. The Sargent 8239 is a keyed double cylinder assembly with classroom security intruder deadbolt function, so none of those will satisfy a lockdown requirement.
12) We need a privacy or restroom mortise lock with a deadbolt, not classroom security. What is the right part?
For restroom and privacy openings, the Cal-Royal NM8440 is a Grade 1 heavy duty privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 to 2 inch. Those use a thumbturn-style privacy deadbolt rather than key control. The Sargent 8239 is keyed as a double cylinder with classroom security intruder deadbolt function, which is intended for instructional spaces where a key controls the inside lockdown.
13) Our opening is access controlled and needs to release electrically. Is the 8239 usable or do I need a different lock?
You need an electrified mortise lock. The Command Access ML190 Series is a heavy duty motorized mortise lock with field selectable fail safe or fail secure operation on 24VDC in storeroom function, the BEST 45HW is a heavy duty wired electromechanical mortise lock running 12V or 24V, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, on 12/24VDC for 1-3/4 inch doors. The Sargent 8239 assembly is mechanical and non-electronic.
14) Can the Sargent 8200 mortise lock be changed to a different function later?
The 8200 Series platform covers 56 lock functions, including electromechanical, security and monitoring versions, and functions can be switched on site. For a facility standardizing on one lock body across many openings, that means fewer distinct parts stocked and a function change without replacing the whole lock.
15) Is there an installation template for cutting the door for a Sargent 8200 mortise lock?
Yes. Sargent publishes a 7800 and 8200 Series mortise lock installation template covering all sectional rose trims and escutcheon trims, and a full 7800/8200 mortise lock catalog with the function and trim tables. Use the template for the pocket, cross bore and escutcheon hole layout before you machine the door.
16) Is a BEST 45H public entrance mortise lock an acceptable substitute for the Sargent 8239 on a classroom door?
No, they solve different problems. The BEST 45HCAC is a heavy duty mortise lock body in public entrance function with field reversible operation, which keeps an opening usable for general traffic with a push-button or key-controlled lock state at the corridor. The Sargent 8239 is a heavy duty Grade 1 assembly with classroom security intruder deadbolt function and double cylinder keying, meant for rooms where the occupant secures the door from inside. If the classroom requires intruder lockdown, the BEST intruder-function 45HCAINL lockbody is the nearer comparison.
17) Will a Baldwin or Emtek mortise lock work in place of the Sargent 8239 on a school door?
They are not equivalents. The Baldwin 6301 entry/apartment and 6310 entry/storeroom mortise lock bodies use a 2-1/2 inch backset, and the Emtek Brisbane 3019, Memphis 3102, Hamilton 3104 and Manhattan 3106 mortise entrance locksets are dummy function, meaning no latching or locking at all. The Sargent 8239 is a Grade 1 heavy duty commercial assembly with classroom security intruder deadbolt function and double cylinder keying, which is the configuration a school lockdown specification calls for.
How fast can I get the Sargent 8239 LE1A 26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sargent 8239 LE1A 26D come with a warranty?
Absolutely. The Sargent 8239 LE1A 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sargent 8239 LE1A 26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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