Corbin Russwin CLX3351 Grade 1...
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$1,022.09
$598.31
Corbin Russwin Corbin Russwin CLX3351 Entrance/Office Cylindrical Lever Lock COR-CLX3351-KEYED

Corbin Russwin CLX3351 Grade 1 Entrance/Office Cylindrical Lever Lock

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Model: CLX3351 NZD 626
$1,022.09
$598.31
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  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different
  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike

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Corbin Russwin CLX3351-KEYED Entrance/Office Cylindrical Lever Lock | ANSI/BHMA Grade 1, 20 Million Cycle Rated

Commercial-Grade Cylindrical Lever Lock with Freewheeling Vandal Resistance and Flexible Key Control

The Corbin Russwin CLX3351-KEYED is a heavy-duty ANSI/BHMA Grade 1 cylindrical lever lock engineered for high-traffic entrance and office applications. Designed for doors 1-3/4" to 2" thick with a 2-3/4" backset, this keyed lock features ANSI function F109 (Entrance/Office) with a deadlocking latchbolt operable by lever from either side, except when the push/turn button locks the outside lever. Constructed of steel with zinc dichromate treatment for corrosion resistance, the CLX3351-KEYED is UL cycle-tested to 20 Million Cycles (Verification ID: V875753) and exceeds ANSI/BHMA A156.2 Grade 1 requirements across every performance category. The most common configuration features the NZD Newport lever in 626 Satin Chrome finish.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 cylindrical lock per A156.2 (2022) Series 4000
  • UL Cycle above and beyond: 20 Million Cycles (Verification ID: V875753)
  • Exceeds 3,100 in-lb abusive locked lever torque — 2.6× ANSI requirements
  • Exceeds 1,600 lbs offset lever pull — 8× ANSI requirements
  • Innovative Lever Release™ freewheeling design for vandal resistance
  • Lock chassis design supports all cylinder formats (fixed core to interchangeable core)
  • Patented adjustable push/turn button for easy door thickness adjustment
  • Available with BHSS behavioral health trim and VSL visual status indicators
  • EcoFlex® technology on CLX33900: up to 92% energy reduction (GreenCircle certified)
  • Available with 27 mechanical and 2 electrified functions
  • CLX3352 Classroom Intruder: locking from either side, always-free egress
  • ElectroLynx® 8-pin molex connector on electrified units
  • Ten-year limited mechanical warranty (two-year limited electrical)

Technical Specifications

  • Grade: ANSI/BHMA A156.2 (2022) Series 4000, Grade 1
  • Door Prep: ANSI/SDI A250.14
  • Handing: Non-handed
  • Door Thickness: 1-3/4" 2" (44–51mm) standard; optional 1-3/8" (D138) or over 2" up to 2-1/4" (D214)
  • Backset: 2-3/4" (70mm) standard; optional 2-3/8", 3-3/4", 5"
  • Minimum Stile: 4-1/2" (114mm)
  • Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) deadlocking fire latch
  • Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8" standard
  • Strike: Wrought brass or stainless steel, ANSI curved lip, 4-7/8" x 1-1/4" x 1-1/4" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Electrified Voltage: 12VDC or 24VDC; range 10.2–26.4VDC (CLX33900)
  • Electrified Current: 10mA continuous; 500mA peak @ 12VDC or 24VDC
  • Operating Temperature: -13°F (-25°C) to 151°F (66°C) (electrified)
  • Certifications: ANSI/BHMA A156.2 Grade 1; UL/cUL 3-hour; UL294 (electrified); NFPA 80; ADA A117.1; Windstorm/Hurricane certified
  • Warranty: Ten-year limited mechanical; two-year limited electrical

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities and Universities
  • Healthcare Institutions and Hospitals
  • Manufacturing and Industrial Facilities
  • Retail Establishments
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Corbin Russwin Quality?

Corbin Russwin CLX3300 Series cylindrical lever locks deliver professional-grade reliability backed by UL cycle testing to 20 Million Cycles and performance that exceeds ANSI/BHMA A156.2 Grade 1 requirements by significant margins—including 2.6 times the abusive torque threshold and 8 times the offset lever pull requirement. The steel and zinc dichromated substrate ensures corrosion resistance for long service life, and every lock is covered by a 7 Year Limited warranty. Engineered for demanding commercial applications where dependable performance, design flexibility, and maximum vandal resistance are essential.

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CLX3300 Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin Cylinder, L4 Keyway
Standard Latch:
Deadlatch - Square corner front, 2-1/4" x 1-1/8", 2-3/4" backset
Standard Strike:
ANSI Curved Lip 1-1/4" Lip Length
Warranty:
7 Year Limited
ANSI/BHMA:
F109
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
Deadlocking latchbolt (either side). Freewheeling lever action determined by push turn button (engaged vs engaged + turned vs disengaged). Use of outside key required in engaged + turned. Inside lever always free.
Lock Type:
Cylindrical
Handle Type:
Lever
Lock Function:
Entrance/Office
Product Attribute:
Cylindrical Locks
Product Model:
CLX3351
Product Function:
Entrance/Office
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4" to 2"
Fire Rating:
Yes
Product Category:
Mechanical Locks
Product Substrate:
Steel, Zinc dichromated for corrosion resistance
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin CLX3351 NZD 626 – Frequently Asked Questions

1) Will the Corbin Russwin CLX3351 fit a 1-3/4 inch commercial door?
Yes, 1-3/4 inch is right in the middle of the CLX3351's range. The lock is built for doors 1-3/4 to 2 inches thick with a 2-3/4 inch backset, which is the standard commercial bore layout. It is non-handed, so one lock covers left and right hand openings without ordering by hand.
2) How does the Entrance/Office function work on a CLX3351 lever lock - who can lock it and who gets out?
It's ANSI function F109. The latchbolt is deadlocking and the lever retracts it from either side until the push/turn button on the inside is used. Push the button and the outside lever freewheels until the inside lever is turned; push and turn it and the outside lever stays locked until a key is used from outside. The inside lever is always free, so nobody gets trapped in the office.
3) Can the CLX3351 go on a fire rated door?
Yes. The CLX3351 cylindrical lever lock is fire rated, and the deadlocking latch plus always-free inside lever is what a fire door opening needs for egress. Order the finish and lever style you want; the fire rating applies to the lock itself.
4) Will the CLX3351 work with my existing small format interchangeable core keying system?
Yes, the cylinder is a choice you make when ordering. The CLX3351 ships standard with a conventional 6-pin cylinder in the L4 keyway, but you can order it M08 (less core, SFIC prep that accepts 6 or 7 pin cores in all designs), CL6 or CL7 (less core, Corbin Russwin large format IC in 6 or 7 pin), M69 (less core, Schlage full size IC), or LC (less conventional cylinder) if you are supplying your own. Pick the one that matches the cores your building already keys.
5) What do I need to specify when ordering a Corbin Russwin CLX3351?
Four things. Lever style: Armstrong (AZD), Newport (NZD), or Princeton (PZD). Finish, from fourteen choices including 626 satin chrome, 605 bright brass, 606 satin brass, 613 oil-rubbed bronze, 619 satin nickel, 625 bright chrome, plus BSP black suede and WSP white suede powder coat. Cylinder format. And keying: keyed different is standard, or keyed alike if you want a group of doors on one key. There is also a free-text field for special cylinder or keying requirements.
6) Can I key a batch of CLX3351 locks alike so one key opens every office?
Yes. Keying is chosen at order time: KD keyed different is the standard, or KA keyed alike when you want multiple locks on one key. It's a single cylinder lock, keyed outside only, and the standard cylinder is a conventional 6-pin in the L4 keyway. If you're matching an existing master system, note that in the special keying field rather than taking the default.
7) Will the CLX3351 latch drop into the strike prep that's already in my frame?
The standard latch is a deadlatch with a square corner front measuring 2-1/4 x 1-1/8 inches on a 2-3/4 inch backset, and it comes with an ANSI curved lip strike with a 1-1/4 inch lip length. If your frame already has ANSI strike prep and a square corner latch cutout, it drops in. Frames prepped for a round corner or drive-in latch will need the front swapped or the door edge re-prepped.
8) What's another Grade 1 entry/office lever lock if the Corbin Russwin isn't what I need?
The Dexter C1000 Series Entry/Office lever is the closest cross-brand equivalent we carry: Grade 1, same Entrance/Office function, with a clutching lever and a door thickness range of 1-3/8 to 1-3/4 inches. That thickness range is the deciding difference. The Corbin Russwin CLX3351 covers 1-3/4 to 2 inch doors, so on a thin 1-3/8 inch door the Dexter fits and the CLX3351 does not; on a 2 inch door it's the other way around.
9) I have a 1-3/8 inch interior door - can I still use a CLX3351?
Not as standard. The CLX3351 is built for 1-3/4 to 2 inch doors, which is the normal commercial thickness range, and 1-3/8 inch is below it. On older interior doors at 1-3/8 inches, use a lock rated for that range instead: the Dexter C1000 Entry/Office covers 1-3/8 to 1-3/4 inches, and the Hager 2525 entry lever covers 1-3/8 to 2 inches.
10) What is the closest Grade 1 keyed entrance/office lever lock to the Corbin Russwin CLX3351 from another brand?
The Dexter C1000 Series Entry/Office cylindrical lever lock is the nearest peer: it is a Grade 1 keyed entrance/office cylindrical lever lock with a clutching lever, sized for doors 1-3/8 inch to 1-3/4 inch thick. The CLX3351 carries ANSI/BHMA Grade 1 with ANSI function F109 entrance/office and covers 1-3/4 inch to 2 inch doors as standard, so on a 2 inch door the Corbin Russwin is the one that fits without a thickness option. Both use a lever that goes free under abuse rather than transmitting force to the chassis.
11) The door needs to stay locked at all times with key access only, not a push button. What should I use instead of the CLX3351?
Use a storeroom function lock. The Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for doors 1-3/8 inch to 1-3/4 inch, and the Hager 2580 is a Grade 2 storeroom cylindrical lock with the Withnell lever for doors 1-3/8 inch to 2 inch. The CLX3351 is entrance/office: the outside lever is locked and unlocked by a push/turn button and a key is required only when the button is engaged and turned, so anyone inside can leave it unlocked.
12) I need a classroom lock, not an office lock. What is the alternative to the Corbin Russwin CLX3351?
The Dexter C1000 Series classroom cylindrical lever lock is a Grade 1 keyed clutching classroom lock, and the C1000 Classroom Security version adds keyed locking from the inside; both are listed for doors 1-3/8 inch to 1-3/4 inch. Cal-Royal AG03 is a classroom lever with a 6-pin Schlage C keyway and a 2-3/4 inch backset if the keyway needs to match a Schlage system. The CLX3351 is an entrance/office F109 lock, which is a different function from classroom.
13) My facility keys everything to Schlage C. Is the CLX3351 still an option or should I buy a different lock?
The CLX3351 is orderable less core prepped for a Schlage full size interchangeable core, and it also ships as a conventional 6-pin L4 keyway or prepped for Corbin Russwin large format cores in 6 or 7 pin, or a small format core accepting 6 or 7 pin in all designs. If a factory Schlage C conventional cylinder is required instead, the Cal-Royal AG00 entrance lever and AG03 classroom lever are supplied with a 6-pin Schlage C keyway keyed different, and the Arrow MK33-BD-CS asylum lock uses a Schlage C keyway conventional cylinder.
14) Is a Grade 1 cylindrical lever lock worth it over a Grade 2 for an office door?
Grade 1 is the top ANSI/BHMA durability tier and it's what to use where the door gets hammered all day: main entries, corridor offices, tenant suites in a busy building. The CLX3351 is Grade 1 with a steel, zinc dichromated chassis for corrosion resistance. If the opening is light traffic, a Grade 2 entry lever like the Falcon B511CP6D or the Hager 2525 does the same Entrance function at a lower duty level. For heavy use, stay with Grade 1.
15) Will a CLX3351 match the levers already on the rest of my building's doors?
It depends which lever family you standardized on. The CLX3351 comes in three lever styles, Armstrong (AZD), Newport (NZD), and Princeton (PZD), and fourteen finishes running from 605 bright brass through 626 satin chrome, 619 satin nickel, 613 oil-rubbed bronze, 722 black oxidized bronze, and the BSP black and WSP white powder coats. Match the lever style and finish code off an existing door and the new lock reads the same across the fleet. 626 satin chrome with the Newport lever is the usual commercial pairing.
16) Is the Corbin Russwin CLX3351 tough enough for a school or hospital corridor?
That's the application it's built for. Grade 1 per ANSI/BHMA A156.2 (2022) Series 4000, UL cycle tested to 20 million cycles, with a Lever Release freewheeling design so a locked lever spins under abuse instead of snapping off. Corbin Russwin publishes it as exceeding 3,100 in-lb of abusive locked lever torque and 1,600 lbs of offset lever pull. The chassis is steel with a zinc dichromate treatment for corrosion resistance.
17) Does a locksmith need to order the CLX3351 by hand, left or right?
No handing to specify. The CLX3351 is non-handed, so the same lock works on a left or right hand door and you can stock one part number across a building instead of splitting inventory. That also means a field reverse is not required when a door swing changes.
18) Which Grade 1 lever locks look like the CLX3351 but will not lock the door?
Several Grade 1 cylindrical levers in the same body style are non-keyed and cannot secure an opening. The Falcon K101 is a Grade 1 non-keyed passage lock with non-handed levers for doors 1-3/8 inch to 2-1/4 inch, the Falcon T101 is a Grade 1 heavy duty passage lever, the Design Hardware X75 is a Grade 1 passage lever for 1-3/4 inch doors, and the BEST 9K Series 1DT is Grade 1 single dummy trim with no latch at all. The CLX3351 is keyed with a single cylinder and a deadlocking latchbolt.
19) Is there a lighter-duty entrance/office lever lock than the Corbin Russwin CLX3351 for a low-traffic interior office door?
Two step down in grade while keeping the entrance/office function. The Falcon B511CP6D is a Grade 2 medium duty cylindrical lever lock with entry/office function, and the Cal-Royal AUS00 is a Grade 3 entrance/office lever with a solid brass forged body for doors 1-3/8 inch to 1-3/4 inch thick. The CLX3351 is ANSI/BHMA Grade 1 with a steel, zinc dichromated chassis, which is the specification to hold when the door sees tenant or public traffic all day.
20) Can I use a keypad lever instead of a keyed CLX3351 so tenants do not carry keys?
Yes, with a change in how the opening works. The Lockey 2835 is a mechanical pushbutton keyless lever lock with passage function and ADA compliance for doors 1-3/16 inch to 2 inch, the Lockey 2835DC adds a second combination, and the Lockey 1150 is a heavy duty mechanical keypad lever set for 1-1/8 inch to 2 inch doors with an adjustable backset version. The Delaney LP250 is an electronic keypad leverlock at Grade 2. The CLX3351 is a keyed single cylinder entrance/office lock, so it is the choice when the opening has to run on an existing key system.
21) The door is a restroom or bedroom that needs a thumbturn, not a key. What replaces the CLX3351 there?
Use a privacy function lock. The Arrow MK02-TA is a privacy bed and bath cylindrical lock with a Tudor knob, non-keyed, fire rated, for doors 1-3/4 inch to 2 inch. The Hager 2540 uses the Withnell lever for doors 1-3/8 inch to 2 inch, and the Kwikset 300BRNL Breton is a Grade 3 privacy lever for 1-3/8 inch to 1-3/4 inch doors. The CLX3351 is an entrance/office lock with a keyed outside cylinder, which is not the function for a restroom.
22) Is a knob-style entrance lock like the Arrow HK11 a direct substitute for a CLX3351 lever?
No, on two counts. The Arrow HK11-BB is a turn-pushbutton entrance cylindrical lock with a ball knob at Grade 2 for doors 1-3/8 inch to 1-3/4 inch. The CLX3351 is a lever, which is what ADA A117.1 accessible egress paths call for, it is ANSI/BHMA Grade 1, and its standard door range is 1-3/4 inch to 2 inch. The pushbutton locking behavior is similar; the trim type and the grade are not.
23) Are the residential-style entry levers from Baldwin, Deltana or Emtek an alternative to the CLX3351 on a commercial opening?
They serve a different opening. The Deltana 6201 Manchester, 6411 Morant and 6431 Linstead are entry levers for doors 1-3/8 inch to 2 inch, the Baldwin Estate 5103 comes as passage, privacy and handed half dummy, and the Emtek Classic and Arts and Crafts leversets are supplied as dummy pairs. The CLX3351 is a commercial cylindrical lock, non-handed, ANSI/BHMA Grade 1, fire rated, with an ANSI curved lip strike and a deadlatch on a 2-3/4 inch backset, which is what a specified commercial door prep expects.
24) For a patient room or behavioral health area, is the CLX3351 the right lock or is there a better fit?
For a utility or institutional opening where the lever must be key operated from outside and the inside is controlled, the Dexter C1000 Series asylum lock is Grade 1 ANSI function F87 for doors 1-3/8 inch to 2 inch, and the Arrow MK33-BD-CS is a heavy duty asylum lock with a ball knob and a Schlage C conventional cylinder. The CLX3351 is entrance/office with the inside lever always free, and the CLX3300 chassis is also offered with BHSS behavioral health trim and VSL visual status indicators where a ligature resistant trim is the requirement.
25) What pairs with a Corbin Russwin CLX3351 on an inactive leaf or a matching closet door?
For openings that need matching trim but no latching, the BEST 9K Series 1DT is a Grade 1 heavy duty single dummy trim and the BEST 7KC Series 1DT is the Grade 2 medium duty equivalent. For a closet or hall door that latches but never locks, the Design Hardware X75 is a Grade 1 passage lever for 1-3/4 inch doors and the Falcon T101 is a Grade 1 heavy duty passage lever. Match the finish across the opening: the CLX3351 is offered in 626 satin chrome, 630 range brasses and bronzes such as 606 and 613, plus 619 satin nickel.
26) What Grade 2 lever locks cover the same 1-3/4 inch to 2 inch door range as the CLX3351?
The Hager 2525 commercial cylindrical entry lock with lever handle and the Hager 2510 Withnell passage lever both list 1-3/8 inch to 2 inch at Grade 2, and the Arrow GL01 passage lock with Sierra lever lists 1-3/4 inch to 2 inch at Grade 2. The CLX3351 covers 1-3/4 inch to 2 inch as standard at ANSI/BHMA Grade 1, with the door thickness set by a patented adjustable push/turn button rather than a separate chassis.
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Does the Corbin Russwin CLX3351 NZD 626 come with a warranty?
Absolutely. The Corbin Russwin CLX3351 NZD 626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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