Sargent 11G44 T-Zone Grade 1 S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,162.00
$937.27
SGT-11G44

Sargent 11G44 T-Zone Grade 1 Single Cylinder Cylindrical Lock with Service Station Function

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Model: 28-11G44 LB 26D
From the 11 Line Series Collection
$1,162.00
$937.27
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,162.00
$937.27
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Sargent T-Zone 11 Line Grade 1 Single Cylinder Cylindrical Lock with Service Station Function

Professional Grade 1 Cylindrical Lock Solution

The Sargent T-Zone 11 Line Series delivers professional-grade security with Grade 1 ANSI/BHMA A156.2 Series 4000 certification for demanding commercial applications. This single cylinder cylindrical lock accommodates door thickness from 1-3/4" to 2-1/2" with standard 161 door prep and features independently verified 7.6 million cycle testing for exceptional durability. The T-Zone construction prevents lock twisting while integrating with multiple key systems including SARGENT Degree and Signature systems.

Professional Features & Benefits

  • Ultra-High Cycle Rating: Independently verified at 7.6 million cycles (Verification ID: V584148) for exceptional longevity in high-traffic commercial applications.
  • Universal Door Compatibility: Accommodates door thickness from 1-3/4" to 2-1/2" with standard 161 door prep and non-handed design for versatile installation.
  • T-Zone Construction: Torque-resistant design prevents lock twisting and eliminates through bolts or surface screws for superior durability in tough environments.
  • Grade 1 Certification: ANSI/BHMA A156.2 Series 4000 Grade 1 rating with UL-cUL fire rating up to 3 hours and ADA compliance for code-compliant installations.
  • Modular Field Service: Easy function changes in the field with one lockbody supporting multiple functions, simplifying facility maintenance and reducing inventory requirements.
  • Universal Key System Integration: Accepts SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC for flexible security management.
  • Sustainable Construction: Made from 68% post-consumer recycled content per LEED MR credit 4 with Environmental Product Declaration (EPD) for green building projects.
  • Manufacturer Warranty: 10-year limited warranty for added confidence and long-term 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 non-handed installation compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper T-Zone construction alignment.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for cylindrical lock installation.
  4. Install the lockbody and secure all mounting hardware per manufacturer torque specifications, ensuring proper T-Zone construction engagement.
  5. Install cylinder component and configure for service station function, verifying proper key operation and latchbolt operation.
  6. Test lock operation to verify proper function, smooth operation, and proper strike alignment. 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

Microshield Anti-Microbial Option

Microshield coating available as an option to supplement cleaning protocols for healthier environments in healthcare, educational, and high-touch commercial applications.

Why Choose Sargent Quality?

Sargent T-Zone cylindrical locks deliver professional-grade reliability with independently verified 7.6 million cycle testing and Grade 1 ANSI/BHMA certification. The 10-year limited warranty and T-Zone torque-resistant construction ensure dependable performance in demanding commercial environments. Engineered with 68% post-consumer recycled content and modular design for reduced maintenance costs and sustainable facility management.

Product Specs

Series:
11 Line Series
Grade:
Grade 1
Keyed Function:
Single 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:
Service Station
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Service Station
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Department:
Door Hardware

Sargent 28-11G44 LB 26D – Frequently Asked Questions

1) What does the Sargent 11G44 service station function actually do?
The 11G44 is a service station lock, so the outside lever is always rigid (no key retraction from outside) and the latch is retracted only by turning the inside lever. It's the function used on service counters, pass-through rooms, and utility openings where you want free egress from inside and no entry from the corridor side. It is a keyed single cylinder lock in the 11 Line Series.
2) Will a Sargent 11 Line cylindrical lock fit a 2-inch thick door?
Yes. The 11 Line handles door thickness from 1-3/4 inches up to 2-1/2 inches, which covers standard 1-3/4 inch commercial doors and the thicker lead-lined, acoustic, or exterior doors you run into in healthcare and institutional work. It uses standard 161 door prep, so an existing cylindrical cutout takes it without new boring.
3) Will the Sargent 11G44 work with my existing key system?
It integrates with SARGENT Degree and Signature key systems, and also accepts SFIC plus Schlage and Medeco LFIC cores, so it can usually be brought onto a master key system you already run. On the order you pick the cylinder type (6-pin standard, 60 Sargent large format interchangeable, or 70 Sargent small format interchangeable), the keying (keyed different, keyed alike, or master keyed), and the keyway, with LA as the standard and 40 other Sargent keyways available including the C, H, L, R series plus S and U.
4) Is the Sargent 11G44 rated for fire doors?
It carries a UL-cUL fire rating up to 3 hours and is ANSI/BHMA A156.2 Series 4000 Grade 1, with ADA compliance noted for the lever trim. That combination is what specifiers typically need for corridor and stair openings in hospitals, schools, and government buildings.
5) What is a Grade 1 cylindrical lever alternative to the Sargent 11G44 if the opening needs a storeroom function instead of service station?
The Sargent 11G44 is a Grade 1 cylindrical lever lock with a service station function, so the key retracts the latch while the outside lever stays fixed. If the opening calls for a storeroom function instead, the Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt, and the Hager 2580 is a Grade 2 storeroom cylindrical lock with a Withnell lever. Both are storeroom-function levers at Grade 2 rather than Grade 1, so confirm which grade the door schedule specifies before substituting.
6) Which Grade 1 cylindrical lever lock should I use if the door does not need to be keyed at all?
The Sargent 11G44 is a keyed single-cylinder lever lock, so it is not the part for an unkeyed opening. For a non-keyed Grade 1 cylindrical lever, the Falcon K101 is a Grade 1 passage lock with non-handed levers and a 1-3/8 inch to 2-1/4 inch door thickness range, the Corbin Russwin CL3110 is a Grade 1 vandal-resistant passage/closet lever for 1-3/4 inch to 2 inch doors, and the Dexter C1000 passage is a Grade 1 clutching non-keyed lever for 1-3/8 inch to 1-3/4 inch doors. Design Hardware X75 is another Grade 1 passage lever, specified for 1-3/4 inch doors.
7) What should I order instead of the Sargent 11G44 for a door on a 2-1/4 inch or thicker slab?
The Sargent 11G44 accommodates door thickness from 1-3/4 inch up to 2-1/2 inch with standard 161 prep, which covers thick slabs that many cylindrical levers do not. Among comparable Grade 1 cylindrical levers, the Falcon K101 is rated 1-3/8 inch to 2-1/4 inch, and the Corbin Russwin CL3110 is rated 1-3/4 inch to 2 inch, so on a slab over 2-1/4 inch the Sargent range is the one that reaches. Measure the finished slab including any applied protection plates before ordering.
8) Does the Sargent 11G44 work for an electrified access control opening, or do I need something else?
The Sargent 11G44 is a mechanical single-cylinder cylindrical lock, so it does not tie into an access control system. For an electrified cylindrical lever, the Corbin Russwin CL33903 is a Grade 1 fail safe lever rated 12VAC/DC for 1-3/4 inch to 2 inch doors, offered with an NZ lever and D rose. Electrified openings also require power transfer and door prep the mechanical 11G44 does not.
9) For a behavioral health or utility room, is the Sargent 11G44 the right function or should I look at an asylum lock?
The Sargent 11G44 is a service station function, keyed on one side with a single cylinder. Asylum or institution function, where key operation is required from both sides, is a different part: 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 cylindrical lock with a ball knob and conventional cylinder in the Schlage C keyway. Note the Arrow is a knob rather than a lever, which matters where ADA lever operation is required.
10) What looks like a replacement for the Sargent 11G44 but will not actually lock the door?
Several nearby parts are trim or components rather than complete keyed locksets. The Corbin Russwin 585F715 is a Grade 1 lock lever for ED8000 pushpad exit devices and the CL3300 cylindrical series, not a standalone lockset. The Imperial USA ED-EL500HD is heavy duty escutcheon lever trim with an entry function. The Accentra 107S is a Schlage cylinder adapter kit for Yale hardware, and the Codelocks CL410/CL415 tubular latchbolt is a latch only. The Sargent 11G44 is the complete keyed Grade 1 cylindrical lever lockset with a single cylinder.
11) Do I need to specify handing when ordering the Sargent 11G44?
No handing to specify. The 11 Line lockbody is non-handed, so one part number works on a left or right hand opening and you don't need separate stock for each swing. That matters if you're standardizing a building and want a single SKU on the shelf.
12) How durable is the Sargent T-Zone lock for a high traffic door?
It's independently verified at 7.6 million cycles, well beyond the Grade 1 minimum, and classed as heavy duty. The T-Zone construction is torque resistant, which is the part that matters on abused openings: it resists twisting of the lock on the door without needing through bolts or surface screws.
13) What lever styles, roses, and finishes are available on the Sargent 11 Line?
Levers come in B, J, L, and P designs. Roses are B (2-3/4 inch), O (2-3/4 inch), L (3-1/8 inch), and E (3-1/2 inch); pick the larger E rose if you're covering an older or oversized prep. Fourteen finishes are offered, from 26D satin chrome and 15 satin nickel through 10B oil rubbed bronze, 03 and 04 brass, 20D dark statuary bronze, and black or white suede powder coat, so you can match existing trim across a building.
14) Can the function be changed later without replacing the whole lock?
Yes. The 11 Line uses one lockbody across multiple functions and supports field function changes, so a facility can stock fewer parts and convert an opening rather than buy a new lock. Sargent publishes an all-functions installation instruction sheet and a parts manual for the line.
15) What other Grade 1 cylindrical lever locks compare to the Sargent 11 Line?
Among Grade 1 cylindrical levers, the Corbin Russwin CL3100 Series is a vandal resistant fire rated option listed for 1-3/4 to 2 inch doors, the Falcon K Series K101 is heavy duty Grade 1 and fire rated across 1-3/8 to 2-1/4 inch doors, and the Dexter C1000 Series covers Grade 1 classroom, classroom security, and asylum functions on 1-3/8 to 1-3/4 inch doors. The Sargent goes thicker than any of them, up to 2-1/2 inches. If you want service station specifically, stay with the 11G44.
16) Can I use a Grade 2 lever lock instead of the Sargent 11G44 on a busy commercial door?
Only if the traffic is light. The 11G44 is Grade 1 and heavy duty; Grade 2 alternatives like the Hager 2525 entry or 2580 storeroom levers and the Falcon B Series are medium duty and better suited to interior offices and low-traffic tenant spaces. For a corridor, stairwell, or service opening in a school or hospital, stay Grade 1.
17) Is there a simpler Grade 2 lever lock I can use on lower-traffic doors instead of the Sargent 11G44?
The Sargent 11G44 is a heavy duty Grade 1 lever lock. Where a Grade 2 lever is acceptable, the Falcon B511CP6D is a medium duty Grade 2 cylindrical lever with an entry/office function, the Falcon B101 is a medium duty Grade 2 passage lever with a non-handed design, and the Hager 2525 is a Grade 2 commercial cylindrical entry lock for 1-3/8 inch to 2 inch doors. These are different functions from service station, so match the function to how the door is actually used.
18) Can I use a dummy lever like the BEST 9K 1DT in place of the Sargent 11G44 to match trim on an inactive leaf?
Not as a lock, but as matching trim it is the right idea. The Sargent 11G44 is a keyed, latching Grade 1 lever lock. The BEST 9K 1DT is a Grade 1 non-keyed heavy duty single dummy trim cylindrical lever, and the BEST 7KC 1DT is the Grade 2 medium duty single dummy trim equivalent. Accentra 455LN Augusta is another Grade 1 single dummy cylindrical lever in the 5400 series. A dummy has no latch and no cylinder, so it belongs only on an inactive leaf or a pull-only door.
19) Is a keypad leverset a substitute for the Sargent 11G44 on a service door?
They solve different problems. The Sargent 11G44 is a keyed Grade 1 mechanical lever that integrates with Sargent Degree and Signature key systems, SFIC, and Schlage and Medeco LFIC, so it can sit inside an existing master key system. The Delaney LP250 is a Grade 2 electronic keypad leverlock and the Lockey 1150 is a mechanical keypad lever set with double combination for 1-1/8 inch to 2 inch doors. Code-based entry removes the key, which also removes the door from your master keying hierarchy.
20) For a privacy bath or bedroom door, what do I order instead of the Sargent 11G44?
The Sargent 11G44 is keyed with a service station function and is not a privacy lock. For privacy, the Hager 2540 is a Grade 2 cylindrical privacy lock with a Withnell lever for 1-3/8 inch to 2 inch doors, the Arrow MK02-TA is a privacy cylindrical lock with a Tudor knob and a fire rating, and the Baldwin Estate 5103 privacy lever with 5048 rose is a residential-style option. Kwikset 300BRNL Breton is a Grade 3 privacy lever set for 1-3/8 inch to 1-3/4 inch doors.
21) We are standardizing on one heavy duty lever across a facility. How does the Sargent 11G44 compare to the Falcon T series and Corbin CL3100 for that?
The Sargent 11G44 is a non-handed Grade 1 heavy duty cylindrical lever with a modular body, so one lockbody supports multiple functions and functions can be changed in the field, which reduces how many part numbers you stock. The Falcon T101 is a Grade 1 heavy duty cylindrical passage lever with pressure release technology, and the Corbin Russwin CL3110 is a Grade 1 vandal-resistant passage/closet lever for 1-3/4 inch to 2 inch doors. Those two are passage function, so standardizing across keyed and non-keyed openings means mixing functions within whichever line you choose.
22) Is there an antimicrobial option for healthcare doors?
Microshield coating is offered as an option on the 11 Line to supplement cleaning protocols on high-touch levers, aimed at healthcare, education, and similar environments. The lock is also built with 68 percent post-consumer recycled content and has an Environmental Product Declaration, which helps on LEED MR credit 4 documentation.
23) I need a non-keyed lever on the same doors to match the 11G44. What are my options?
For non-keyed openings alongside a keyed service station lock, Grade 1 passage options include the Falcon K101 and the Dexter C1000 passage, and BEST offers a Grade 1 9K Series single dummy trim for doors that need trim only with no latching. Those keep you at the same grade as the Sargent, though the lever and rose designs will not match Sargent's B, J, L, and P levers.
How fast can I get the Sargent 28-11G44 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 28-11G44 LB 26D come with a warranty?
Absolutely. The Sargent 28-11G44 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 28-11G44 LB 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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