Sargent 11G30 T-Zone Grade 1 D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,231.00
$995.78
SGT-11G30

Sargent 11G30 T-Zone Grade 1 Double Cylinder Communicating Lock with 7.6 Million Cycle Rating

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Model: 28-11G30 LB 03
From the 11 Line Series Collection
$1,231.00
$995.78
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,231.00
$995.78
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Sargent T-Zone 11 Line Series Grade 1 Double Cylinder Communicating Lock with 7.6 Million Cycle Rating

Professional Grade 1 Cylindrical Lock Solution

The Sargent T-Zone 11 Line Series Grade 1 Double Cylinder Communicating Lock delivers exceptional durability with independently-verified testing at 7.6 million cycles. This Grade 1 cylindrical lock features modular design for easy field function changes and integrates with multiple key systems including SARGENT Degree and Signature, SFIC, Schlage, and Medeco LFIC. Constructed with 68% post-consumer recycled content and T-Zone torque-resistant design for demanding commercial applications.

Professional Features & Benefits

  • Exceptional Durability: UL Cycle Above and Beyond test completed at 7.6 million cycles (Verification ID: V584148) for lifetime facility reliability.
  • Universal Key System Integration: Accepts SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC for maximum flexibility.
  • T-Zone Construction: Torque-resistant design prevents lock twisting and eliminates through bolts or surface screws for superior installation integrity.
  • Modular Design: Easy field function changes with one lockbody for multiple functions, simplifying facility maintenance and reducing inventory.
  • Standard Door Preparation: Fits standard 161 door prep with non-handed design for versatile installation applications.
  • Sustainable Construction: Made from 68% post-consumer recycled content meeting LEED MR credit 4 requirements.
  • Comprehensive Certifications: ANSI/BHMA A156.2 Series 4000 Grade 1, UL-cUL Fire-Rated up to 3 hours, ADA compliant, and Florida Building Code approved.
  • 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 (1 3/4" to 2 1/2"), backset depth (2 3/4" standard), and standard 161 door prep compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for proper alignment.
  3. Prepare door by drilling required holes per manufacturer specifications, ensuring proper clearances for lock body and cylinder components.
  4. Install lock body and secure all mounting hardware per manufacturer torque specifications, taking advantage of the non-handed design.
  5. Install cylinders and configure key system integration as required for facility key management protocols.
  6. Test lock operation to verify proper function of both cylinders, latchbolt throw (1/2"), 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 independently-verified testing at 7.6 million cycles and torque-resistant T-Zone construction. The 10-year limited warranty and Grade 1 ANSI/BHMA certification ensure dependable performance in demanding commercial applications. Engineered with sustainable materials and modular design for reduced maintenance costs and long-term facility value.

Product Specs

Series:
11 Line Series
Grade:
Grade 1
Keyed Function:
Double Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Lock Function:
Communicating
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Communicating
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Department:
Door Hardware

Sargent 28-11G30 LB 03 – Frequently Asked Questions

1) What does the communicating function on the Sargent 11G30 actually do?
The 11G30 is a double cylinder communicating lock: there is a key cylinder on both sides and no lever-side thumbturn or button. Either key retracts the latch from its own side, so the opening can be controlled from both rooms independently. It is the function used on doors between adjoining rooms, like connecting hotel or patient rooms, where each side needs key control over the other. If you want free egress from one side, this is the wrong function.
2) Can I key the Sargent 11G30 into a Schlage or SFIC system I already run?
It accepts SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC, so it can be brought into most existing commercial keying programs. On the order you pick the cylinder type (6 pin standard, Sargent large format interchangeable core, or Sargent SFIC), the keying (keyed different, keyed alike, or master keyed), and the keyway, with LA as standard and 40 other keyways available including the R, S and U families.
3) Is the Sargent 11 Line lock rated for a fire door?
Yes. The 11 Line cylindrical lock is UL-cUL fire rated up to 3 hours, and it carries ANSI/BHMA A156.2 Series 4000 Grade 1 along with ADA compliance and Florida Building Code approval.
4) What Grade 1 cylindrical lever is the closest alternative to the Sargent 11G30 communicating lock on a keyed opening?
Within the Grade 1 cylindrical lever group, the Dexter C1000 Classroom Security lock (DEX-C1000-CSEC) is the nearest keyed alternative, with a clutching lever and a 1-3/8 inch to 1-3/4 inch door thickness range. The difference is function: the Sargent 11G30 is a double cylinder communicating lock, keyed from both sides so either side can be locked or unlocked independently, while the C1000 Classroom Security keys both sides to lock and unlock the outside lever. If the opening truly needs two-way key control between adjoining rooms, the 11G30 function is what matches; if it is a classroom door, the Dexter is the closer fit.
5) Do I need to specify handing when ordering this Sargent lever lock?
No handing to specify. The 11 Line lock is non-handed, so one lockset works on a left or right hand door and you can stock a single part across a building.
6) How durable is the Sargent 11G30 for a high traffic opening?
It completed the UL Cycle Above and Beyond test at 7.6 million cycles (Verification ID V584148), well past what a Grade 1 cylindrical lock has to reach. Sargent's T-Zone construction resists twisting under lever torque without through bolts or surface screws, which is what usually fails first on abused doors in schools and multi-tenant buildings.
7) What other Grade 1 cylindrical lever locks could I use instead of the Sargent 11 Line?
If the opening does not need a communicating function, other Grade 1 cylindrical levers we carry include the Falcon K101 passage, which is fire rated and covers 1-3/8 to 2-1/4 inch doors, the Corbin Russwin CL3110 vandal resistant passage for 1-3/4 to 2 inch doors, and the Dexter C1000 series in classroom, classroom security and asylum functions. None of those are double cylinder communicating locks, so if you need key control from both sides the 11G30 is the one to stay with.
8) I need access control on the opening instead of a mechanical key. What replaces the Sargent 11G30?
For an electrified opening, the Corbin Russwin CL33903 is a Grade 1 fail safe cylindrical lever running on 12VAC/DC for 1-3/4 inch to 2 inch doors, available with or without a keyed cylinder. Fail safe means the lever unlocks on power loss, which is the opposite behavior from the Sargent 11G30, a purely mechanical double cylinder communicating lock with no power requirement. Standalone keypad options include the Delaney LP250 electronic keypad leverlock at Grade 2 and the Lockey 1150 mechanical keypad lever for 1-1/8 inch to 2 inch doors.
9) If the door does not need to be keyed at all, what is a simpler alternative to the Sargent 11G30?
For a non-keyed opening, the Falcon K101 is a Grade 1 heavy duty passage cylindrical lock with non-handed levers, a 1-3/8 inch to 2-1/4 inch door thickness range and a fire rating, and the Corbin Russwin CL3110 is a Grade 1 vandal resistant passage/closet lever, fire rated, for 1-3/4 inch to 2 inch doors. Both hold the same Grade 1 level as the 11G30 but have no cylinder at all, so there is no keying, keyway or cylinder decision to make. Choose one of those only if the opening never needs key control from either side.
10) What should I use instead of the Sargent 11G30 on a behavioral health or utility room door?
For those openings the asylum function is the correct call. The Dexter C1000 asylum lock (F87) is Grade 1 and fits 1-3/8 inch to 2 inch doors, and the Arrow MK33-BD-CS is a heavy duty asylum lock with a ball knob and a conventional Schlage C keyway. Asylum function keys both sides and gives no free egress from either lever, which is the behavior those rooms call for. The Sargent 11G30 communicating function also keys both sides but retracts the latch by lever, so it does not deliver the same control.
11) What looks like a substitute for the Sargent 11G30 but will not work on a keyed door?
Dummy trim is the common mix-up. The BEST 9K Series 1DT is a Grade 1 single dummy cylindrical lever with no latch and no cylinder, the BEST 7KC 1DT is the Grade 2 medium duty equivalent, and the Accentra 455LN Augusta is a Grade 1 single dummy in the 5400 Series. All three are surface-mounted pull trim only. The Sargent 11G30 is a keyed cylindrical lockbody with a latchbolt and cylinders on both sides, so dummy trim cannot stand in for it on any door that latches.
12) Which Grade 1 lever lines besides Sargent 11 Line can I standardize a facility on?
Among Grade 1 cylindrical lever lines, the Falcon T Series (T101) is heavy duty with pressure release technology, the Falcon K Series (K101) is heavy duty and fire rated across 1-3/8 inch to 2-1/4 inch doors, the Corbin Russwin CL3100 Series is Grade 1 and vandal resistant, and the Design Hardware X Series (X75) is Grade 1 for 1-3/4 inch doors. The Sargent 11 Line differentiates by carrying the full keyed function range including the double cylinder communicating function, with SFIC and large format interchangeable core cylinder options and a long keyway list, which matters if the standardization decision is really a masterkeying decision.
13) My openings use Schlage C keyway cylinders. Do I have to leave the Sargent 11G30 to keep them?
No. The Sargent 11 Line accepts SARGENT key systems including Degree and Signature plus SFIC, Schlage and Medeco LFIC, so an existing Schlage-keyed facility can stay on the 11G30. If you would rather buy the lock already cut to a Schlage C keyway, the Cal-Royal AG00 entrance lever and AG03 classroom lever ship with 6-pin Schlage C keyway keyed different, at 2-3/8 inch and 2-3/4 inch backsets respectively, and the Arrow MK33-BD-CS uses a conventional Schlage C cylinder. Those are Grade 2 products in different functions, so they suit different openings than a Grade 1 communicating lock.
14) Is the Accentra 107S Schlage cylinder adapter kit a way to put a Schlage cylinder in a Sargent 11G30?
No. The Accentra 107S is a Schlage cylinder adapter kit made for Yale hardware, not for Sargent bored locks. The Sargent 11G30 handles this natively: the 11 Line accepts Schlage and Medeco LFIC along with SARGENT Degree and Signature, SFIC and large format interchangeable core, and the cylinder choice is made when the lock is ordered as a 6 pin standard cylinder, 60 large format interchangeable, or 70 small format interchangeable core prep.
15) Can I change the function of this lock later without buying a new lockset?
Yes. The 11 Line uses a modular lockbody, one body covering multiple functions, so a maintenance shop can make field function changes and carry fewer spare locksets across a facility.
16) What lever, rose and finish choices are there on the Sargent 11 Line?
Levers come in B, J, L and P styles, with rose options B and O at 2-3/4 inch, L at 3-1/8 inch and E at 3-1/2 inch. Fourteen finishes are offered, from 26D satin chrome and 15 satin nickel through 10B oil rubbed bronze, 03 bright brass and BSP/WSP suede powder coats, so it can be matched to existing trim on the rest of the building.
17) Does this Sargent lock count toward LEED credits on a green build?
It is made from 68 percent post-consumer recycled content, which the manufacturer states meets LEED MR credit 4 requirements. That is the figure a spec writer or sustainable distributor needs for the submittal.
18) Can I use the Sargent 11G30 on a residential interior door, or is there a better-matched lever?
The Sargent 11G30 is specified as commercial, Grade 1, heavy duty, and its cylinders and keyways are built for facility master key systems. On a house or an apartment interior door, lighter leversets are the closer match: the Kwikset 200BRNL Breton is a Grade 3 passage lever for 1-3/8 to 1-3/4 inch doors, the Kwikset 300BRNL Breton is the Grade 3 privacy version for the same door range, and the Baldwin Estate 5103 is offered in passage and privacy with the 5048 rose. Those are non-keyed or thumbturn functions, so they cover hall, closet, bed and bath rather than a keyed communicating opening.
19) What is a lighter-duty passage lever to pair with the Sargent 11G30 on closet and hall doors in the same building?
For the non-latching-security doors in the same project, common pairings are the Falcon B101 Grade 2 medium duty non-handed passage lever, the Hager 2510 Grade 2 passage lever for 1-3/8 inch to 2 inch doors, the Arrow GL01 Grade 2 Sierra lever passage lock for 1-3/4 inch to 2 inch doors, and the Accentra 5301LN Augusta Grade 2 passage lever. All are non-keyed, so they carry no keyway or cylinder decision, while the Grade 1 heavy duty Sargent 11G30 stays on the keyed communicating openings.
How fast can I get the Sargent 28-11G30 LB 03 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 28-11G30 LB 03 come with a warranty?
Absolutely. The Sargent 28-11G30 LB 03 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 28-11G30 LB 03?
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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