Sargent 11G15-3 T-Zone Exit/Co...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$876.00
$709.45
SGT-11G15-3

Sargent 11G15-3 T-Zone Exit/Communicating Non-Keyed Cylindrical Lock Grade 1 with 7.6 Million Cycle Rating

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Model: 28-11G15-3 LB 26D
From the 11 Line Series Collection
$876.00
$709.45
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$876.00
$709.45
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Sargent T-Zone 11 Line Exit/Communicating Cylindrical Lock Grade 1 with 7.6 Million Cycle Rating

Professional Grade 1 Cylindrical Lock with Modular Design

The Sargent T-Zone 11 Line Series delivers professional-grade security with independently-verified 7.6 million cycle testing and Grade 1 ANSI/BHMA A156.2 Series 4000 certification. This non-keyed cylindrical lock features modular design for easy field function changes, fits standard 161 door prep, and accommodates door thickness from 1-3/4" to 2-1/2" with 2-3/4" standard backset. UL-cUL fire-rated up to 3 hours with T-Zone construction preventing lock twisting and torque-resistant design for demanding commercial environments.

Professional Features & Benefits

  • Exceptional Durability: UL Cycle Above and Beyond test completed at 7.6 million cycles (Verification ID: V584148) for lifetime facility reliability.
  • Door Compatibility: Accommodates door thickness from 1-3/4" to 2-1/2" with 2-3/4" to 5" backset range for versatile installation options.
  • Modular Field-Changeable Design: Easy function changes in the field with one lockbody for multiple functions, simplifying facility maintenance.
  • T-Zone Torque-Resistant Construction: Prevents lock twisting with no through bolts or surface screws, ensuring proper installation and long-term reliability.
  • Universal Key System Integration: Accepts SARGENT key systems including Degree® and Signature, plus SFIC and Schlage® and Medeco® LFIC for maximum flexibility.
  • Fire-Rated Performance: UL-cUL fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Grade 1 Certification: ANSI/BHMA A156.2 Series 4000 certification ensures commercial-grade performance and reliability.
  • Sustainable Construction: Made from 68% post-consumer recycled content per LEED MR credit 4 with Environmental Product Declaration (EPD).
  • Manufacturer Warranty: 10-year limited warranty 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 from 1-3/4" to 2-1/2", standard 161 door prep, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper T-Zone installation.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for standard 161 prep.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications, ensuring T-Zone construction prevents lock twisting.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion with 2-3/4" to 5" backset configuration.
  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 T-Zone cylindrical locks deliver professional-grade reliability with T-Zone torque-resistant construction and independently-verified 7.6 million cycle testing for demanding commercial applications. 10-year limited warranty and Grade 1 ANSI/BHMA certification ensure dependable performance where security and durability are essential. Engineered with 68% post-consumer recycled content and comprehensive certifications including UL fire-rating up to 3 hours for critical facility requirements.

Product Specs

Series:
11 Line Series
Grade:
Grade 1
Keyed Function:
Non-Keyed
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
No
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Lock Function:
Exit/Communicating
Product Type:
Leversets
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Exit/Communicating
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Department:
Door Hardware

Sargent 28-11G15-3 LB 26D – Frequently Asked Questions

1) What does the Sargent 11G15 exit/communicating function actually do on the door?
The 11G15 is a non-keyed exit/communicating lock: the lever is always free on one side for egress, with no key cylinder in the lockset. It is used on connecting doors between rooms and on egress-side openings where you need latching without keyed control. If you need a keyed storeroom or classroom function instead, this is the wrong device.
2) Does the Sargent 11G15 fit standard 161 door prep?
It does. The 11 Line drops into standard 161 cylindrical prep, so on a door already bored for a commercial cylindrical lock you are generally working with existing holes rather than re-boring. The lock uses T-Zone construction with no through bolts or surface screws, so nothing extra shows on the face of the door.
3) Is the Sargent 11 Line lever lock fire rated?
Yes. The 11 Line is UL-cUL fire rated up to 3 hours and complies with NFPA 80, so it can go on rated openings in schools, healthcare and multi-tenant corridors. It also carries Grade 1 certification to ANSI/BHMA A156.2 Series 4000.
4) Will a dummy lever work in place of the Sargent 11G15-3?
No. The Sargent 11G15-3 is a working cylindrical lockset with exit/communicating function and an operating latch. Dummy trims such as the BEST 9K 1DT Grade 1 single dummy, the BEST 7KC 1DT Grade 2 single dummy, the Accentra 455LN Augusta Grade 1 single dummy, or the Emtek Arts and Crafts dummy pair are fixed pulls with no latch mechanism, so they suit inactive leaves and closet faces only, not an opening that must latch.
5) Which Grade 1 lever locks besides the Sargent 11 Line fit doors thicker than 2 inches?
The Sargent 11G15-3 covers 1-3/4 inch to 2-1/2 inch door thickness. Among Grade 1 cylindrical peers, the Falcon K101 lists 1-3/8 inch to 2-1/4 inch, while the Corbin Russwin CL3110 and CL33903 list 1-3/4 inch to 2 inch and the Dexter C1000 passage lists 1-3/8 inch to 1-3/4 inch. If the door is over 2-1/4 inch thick, the Sargent 11 Line range is the one that reaches it.
6) Do I have to specify handing for the Sargent 11G15?
No handing to worry about. The 11 Line lever lock is non-handed, so one part number works on left and right hand doors. That is useful when you are stocking spares for a building rather than ordering door by door.
7) What lever and rose styles can I get on the Sargent 11 Line to match existing doors?
Lever choices are B, J, L and P. Roses come as B at 2-3/4 inches, O at 2-3/4 inches, L at 3-1/8 inches and E at 3-1/2 inches. If you are adding doors to a building already running 11 Line hardware, match the lever letter and rose size to keep the openings consistent.
8) Can I change the function later without buying a whole new lock?
Yes, within the 11 Line. The lockbody is modular and functions can be changed in the field, so one body covers multiple functions and a facility can restock fewer parts. That is a practical difference from locks where a function change means a full replacement lockset.
9) How durable is the Sargent 11 Line compared to a Grade 2 lever lock?
The 11 Line is Grade 1 heavy duty with UL Above and Beyond cycle testing completed at 7.6 million cycles. Grade 2 levers such as the Falcon B101 passage lock or the Hager 2510 are medium duty and aimed at lower traffic openings. For stairwells, classrooms and corridors that get hit all day, the Grade 1 body is the one that survives.
10) Does the Sargent 11 Line work with our existing key system?
The 11G15 itself is non-keyed, so there is no cylinder in it. Other functions in the 11 Line accept SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC, so a building standardized on one of those keyways can run keyed 11 Line locks on the openings that need them alongside these non-keyed ones.
11) Is there a Grade 2 lever lock I can use instead of the Sargent 11 Line on lower-traffic interior doors?
Yes. Grade 2 cylindrical lever options include the Accentra 5301LN Augusta in the 5300 Series and the 4601LN in the 4600 Series, both passage/hall/closet function; the Arrow GL01 passage lever with Sierra lever for 1-3/4 inch to 2 inch doors; the Falcon B101 medium duty passage lever; the Design Hardware J75 passage lever for 1-3/4 inch doors; and the Hager 2510 passage lever for 1-3/8 inch to 2 inch doors. The Sargent 11G15-3 is Grade 1 heavy duty with exit/communicating function, so the Grade 2 passage models differ both in ANSI grade and in how the lock operates.
12) I need a keyed lever on the same doors as the Sargent 11G15-3 non-keyed lock. What options are there?
The Sargent 11G15-3 is non-keyed, so for keyed openings consider the Dexter C1000 Grade 1 classroom cylindrical lever, keyed with clutching, for 1-3/8 inch to 1-3/4 inch doors, or the C1000 Grade 1 classroom security version. For storeroom function, the Hager 2580 is a Grade 2 storeroom cylindrical lock with Withnell lever for 1-3/8 inch to 2 inch doors and the Cal-Royal AG05 is a Grade 2 storeroom lever with deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors. Confirm the keyway matches your existing system before ordering.
13) The opening needs bathroom privacy instead of exit/communicating. What replaces the Sargent 11G15-3 there?
Privacy function options include the Hager 2540 Grade 2 cylindrical lock with Withnell lever for 1-3/8 inch to 2 inch doors, the Kwikset 300BRNL RDT Breton Grade 3 privacy lever for 1-3/8 inch to 1-3/4 inch doors, the Baldwin Estate 5103 privacy lever with 5048 rose, and the Arrow MK02-TA privacy lock with Tudor knob for 1-3/4 inch to 2 inch fire rated openings. The Sargent 11G15-3 is non-keyed exit/communicating, which does not provide an inside privacy turn.
14) Is there an electrified cylindrical lever equivalent if the opening needs access control rather than the mechanical Sargent 11G15-3?
For electrified control, the Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever lock operating on 12VAC/DC for 1-3/4 inch to 2 inch doors, offered with NZ lever and D rose. The Sargent 11G15-3 is a mechanical non-keyed cylindrical lock, so switching to the CL33903 adds power supply and wiring requirements to the opening.
15) For a healthcare or institutional door, does an asylum function lever substitute for the Sargent 11G15-3?
They serve different openings. The Dexter C1000 asylum F87 is a Grade 1 cylindrical lock for 1-3/8 inch to 2 inch doors and the Arrow MK33-BD-CS is a Grade 2 heavy duty asylum/institution/utility lock with ball knob and conventional Schlage C keyway. Asylum function keys both sides; the Sargent 11G15-3 is non-keyed exit/communicating, which is the choice where free egress from the room is required.
16) Can I use a residential-grade lever like the Kwikset 200DL or Callan Asheville where the Sargent 11G15-3 is specified?
Those are lighter-duty products. The Kwikset 200BRNL RDT Breton is a Grade 3 passage lever for 1-3/8 inch to 1-3/4 inch doors, the Kwikset 200DL Delta is a reversible passage lock with adjustable 6AL latch and RCS strike, the Callan Asheville is a Grade 3 passage leverset, and the Cal-Royal AUS00 is a Grade 3 entrance/office lever for 1-3/8 inch to 1-3/4 inch doors. The Sargent 11G15-3 is Grade 1 heavy duty commercial, so a Grade 3 lever does not satisfy a Grade 1 specification.
17) Is the Design Hardware X75 a Grade 1 alternative to the Sargent 11 Line lever?
The Design Hardware X75 is a Grade 1 passage lever lockset with a flat lever in the X Series for 1-3/4 inch doors, so it matches the Sargent 11G15-3 on ANSI grade. It differs in function, since it is passage rather than exit/communicating, and in door range, since the Sargent 11 Line accepts 1-3/4 inch through 2-1/2 inch doors. The 11 Line also offers B, J, L and P lever styles with B, E, L and O roses.
18) What finishes does the Sargent 11 Line lever lock come in?
Fourteen finishes: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized bronze, 10BE, 10BL, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 26D satin chrome, plus BSP black suede and WSP white suede powder coat. 26D is the usual commercial default.
19) Does the Sargent 11 Line count toward LEED credits?
It is made from 68 percent post-consumer recycled content per LEED MR credit 4, and an Environmental Product Declaration is published for it. That is the documentation a sustainability-minded specifier or distributor will be asked for on a green build.
20) What is the difference between the Sargent 11G15-3 and a keypad lever lock for a room that needs code entry?
Keypad options include the Lockey 1150 heavy duty mechanical keypad lever set with double combination for doors 1-1/8 inch to 2 inch, the Delaney LP250 Grade 2 electronic keypad leverlock, and the Emtek Classic keypad leverset. The Sargent 11G15-3 has no credential input at all; it is a non-keyed Grade 1 exit/communicating cylindrical lever, so a keypad model changes the opening from mechanical egress trim to code-controlled entry.
How fast can I get the Sargent 28-11G15-3 LB 26D delivered?
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Can I return it if it doesn’t work for me?
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Does the Sargent 28-11G15-3 LB 26D come with a warranty?
Absolutely. The Sargent 28-11G15-3 LB 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 28-11G15-3 LB 26D?
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