Corbin Russwin CL3851 Grade 2 ...
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$453.67
$257.80
Corbin Russwin Corbin Russwin CL3851 Entrance/Office Standard-Duty Cylindrical Lever Lock COR-CL3851-KEYED

Corbin Russwin CL3851 Grade 2 Entrance/Office Standard-Duty Cylindrical Lever Lock

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Model: CL3851 NZD 626
$453.67
$257.80
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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 CL3851-KEYED Entrance/Office Cylindrical Lever Lock, Grade 2, ANSI F109, UL 3-Hour Fire Rated

Standard-Duty Commercial Cylindrical Lever Lockset for Entrance and Office Applications

The Corbin Russwin CL3851-KEYED is a standard-duty, Grade 2 cylindrical lever lockset engineered for entrance and office applications in commercial environments. Designed to ANSI function F109, this keyed lock features a deadlocking latchbolt operable by lever from either side, with outside lever control managed by a push turn button. Compatible with doors ranging from 1-3/8" to 1-3/4" in thickness and a standard 2-3/4" backset, the CL3851 is part of the CL3800 Series and carries a UL-cUL 3-hour fire rating along with ANSI/BHMA Grade 2 certification. The most common configuration features the NZD Newport lever in 626 Satin Chrome finish.

Professional Features & Benefits

  • Grade 2 standard-duty lever lockset per ANSI/BHMA A156.2 Series 4000, Grade 2
  • Lever Release freewheeling levers for vandal resistance
  • Solid cast levers with no plastic inserts
  • Thrubolts prevent chassis rotation; ensure alignment, smooth operation and long life
  • Non-handed spring cassette prevents lever sag
  • 1/2" throw latchbolt accommodates 7/8" and 1" edge bore preps
  • 2-3/8", 2-3/4", 3-3/4" and 5" backsets available
  • UL/cUL listed for 3-hour fire doors up to 4' x 10'
  • 14 finishes plus MicroShield® antimicrobial options
  • High Security and security key systems available (Access 3®, Pyramid)
  • Five-year limited warranty

Technical Specifications

  • Grade: ANSI/BHMA A156.2 Series 4000, Grade 2
  • Door Prep: ANSI/BHMA A156.115
  • Handing: Non-handed
  • Door Thickness: 1-3/8" to 1-7/8" (35–48mm) standard; optional 2" 2-1/4" (57mm)
  • Backset: 2-3/4" (70mm) standard; optional 2-3/8", 3-3/4", 5"
  • Latchbolt: Stainless steel, 1/2" (13mm) throw
  • 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
  • Minimum Stile: 4-1/2" (114mm)
  • Certifications: ANSI/BHMA A156.2 Grade 2; UL/cUL 3-hour fire rating; ADA A117.1; NFPA 80; Windstorm/Hurricane certified
  • Warranty: Five-year limited

Professional Applications

  • Interior Office Environments
  • Commercial Retail Complexes
  • Multi-Family and Multi-Tenant Residential Properties
  • Restaurant and Hospitality Facilities
  • Educational Institutions
  • Healthcare and Medical Office Buildings
  • Closet and Storage Room Access Points

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3800 Series cylindrical lever locksets deliver an outstanding combination of value and performance, meeting ANSI/BHMA Grade 2 certification and carrying a UL-cUL 3-hour fire rating for code-compliant commercial installations. Solid cast levers, a steel substrate with zinc dichromate corrosion resistance, and the proprietary Lever Release™ vandal-resistant design ensure long-term reliability in demanding environments. Backed by a 7 Year Limited warranty, the CL3851 is engineered to provide dependable entrance and office security across a wide range of standard commercial applications.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL3800 Series
Grade:
Grade 2
Duty Level:
Medium Duty
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:
CL3851
Product Function:
Entrance/Office
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/8" to 1-3/4"
Fire Rating:
Yes
Product Category:
Mechanical Locks
Product Substrate:
Steel, Zinc dichromated for corrosion resistance
Backset (Distance):
2-3/4"
Department:
Door Hardware

Parts & Accessories

    Corbin Russwin CL3851 NZD 626 – Frequently Asked Questions

    1) Will the Corbin Russwin CL3851 fit a 1-3/4 inch commercial door?
    Yes. The CL3851 entrance/office lever lock is rated for doors 1-3/8 inch to 1-3/4 inch thick, which covers both the standard 1-3/4 inch commercial door and the thinner 1-3/8 inch interior doors common in older buildings. It's non-handed, so the same lock works on a left or right hand opening without any field conversion.
    2) How does the entrance/office function on the CL3851 actually work day to day?
    The push turn button on the inside rose controls the outside lever. Push the button in and the outside lever locks but unlocks again the next time you use the key or turn the inside lever; push and turn it and the outside stays locked until you key it or reset the button, so staff can leave the office secured. The inside lever is always free for egress, and the latchbolt is deadlocking, so it can't be carded once the door is closed. This is ANSI F109.
    3) Can a Corbin Russwin CL3851 go on a fire rated office door?
    Yes, the CL3851 carries a fire rating and the inside lever is always free, so it does not add a second operation to leave the room. It is Grade 2 per ANSI/BHMA and non-handed, so one part number covers every opening in a corridor regardless of swing.
    4) What cylinder comes in the CL3851 and can I put it on my existing key system?
    Standard is a conventional 6-pin cylinder in the L4 keyway. If you run an interchangeable core system, order the chassis prepped instead: CL6 takes a Corbin Russwin large format 6-pin core, CL7 takes an LFIC 7-pin core, and M08 is an SFIC prep that accepts a 6 or 7-pin small format core. All three ship less core so you install your own. LC is less conventional cylinder, for when you're supplying a conventional cylinder yourself.
    5) Should I use a Grade 2 lock like the CL3851 or step up to Grade 1 for a high traffic entrance?
    The CL3851 is a medium duty Grade 2 cylindrical lock, which is the right level for office doors, tenant suites and interior openings in a commercial building. For a main entrance, a school corridor or anything taking constant public use, go Grade 1: the Dexter C1000 Series entry/office lock is the Grade 1 cylindrical equivalent in the same function and also covers 1-3/8 inch to 1-3/4 inch doors. Falcon's K Series is another Grade 1 heavy duty cylindrical option. Same door prep either way, so the decision is about cycle life, not fit.
    6) I need a lock that stays locked from outside at all times. Is the entrance/office CL3851 the right function?
    No, that's a storeroom function, not entrance/office. On the CL3851 the outside lever is controlled by a push turn button, so anyone inside can leave it unlocked, which is wrong for a mechanical room or supply closet. For always-locked outside trim, look at a storeroom lock such as the Cal-Royal AG05 Grade 2 storeroom lever with deadlocking latchbolt, or the Hager 2580 Grade 2 storeroom lever. For a classroom keyed from outside only, the Cal-Royal AG03 classroom lever is Grade 2 on a 2-3/4 inch backset.
    7) My doors are 2 inches thick - will the CL3851 fit, or do I need something else?
    The CL3851 is catalogued for 1-3/8 inch to 1-3/4 inch doors. For a 2 inch door, the Hager 2525 is a Grade 2 commercial cylindrical entry lever covering 1-3/8 inch to 2 inch, and the Falcon K101 reaches 1-3/8 inch to 2-1/4 inch as a Grade 1 heavy-duty fire-rated set, though the K101 is a passage function rather than a keyed one. Among keyed choices, the Hager 2525 is the direct fit.
    8) I need a heavier lock than the CL3851 for a high-traffic entrance - what steps up?
    The Dexter C1000 Series Entry/Office is the Grade 1 counterpart in the same function. It holds the same entrance/office function and the same 1-3/8 inch to 1-3/4 inch door thickness range as the CL3851, so the opening does not change, but it is built to Grade 1 rather than the CL3851's Grade 2 medium-duty rating. It also uses clutching lever trim, where the CL3851 uses freewheeling Lever Release levers.
    9) Can the CL3851 be used on a classroom door that has to be locked from the corridor with a key?
    For a classroom opening, specify a classroom function rather than the CL3851's entrance/office F109. The Cal-Royal AG03 is a Grade 2 classroom lever on a 2-3/4 inch backset with a 6-pin Schlage C keyway, and the Dexter C1000 Series Classroom is the Grade 1 clutching keyed version for 1-3/8 inch to 1-3/4 inch doors. Where the room also needs to be secured from inside during a lockdown, the Dexter C1000 Classroom Security is the Grade 1 classroom security function.
    10) I'm keying a whole floor of offices the same. Can the CL3851 be ordered keyed alike?
    Yes. Keying is a required choice on the CL3851: KD keyed different is standard, and KA keyed alike is the option when a set of locks needs to run on one key. Specify how many locks belong to each keyed alike group when you order, and use the special cylinder/keying field for anything beyond that, like keying into an existing master system.
    11) Which lever designs and finishes does the CL3851 come in, and can I match the levers already in my building?
    Three lever designs are offered on the CL3851: Armstrong (AZD), Newport (NZD) and Princeton (PZD). Fourteen finishes run from 605 bright brass and 606 satin brass through 611, 612, 613, 613E and 613L bronzes, 618 bright and 619 satin nickel, 625 bright and 626 satin chrome, 722 black oxidized bronze, plus BSP black suede and WSP white suede powder coat. 626 satin chrome with the Newport lever is the usual commercial combination, so that is the one most likely to match existing openings.
    12) What is a Grade 2 entrance/office lever lock comparable to the Corbin Russwin CL3851?
    The closest peer is the Falcon B511CP6D, a Grade 2 medium duty cylindrical lever lock in the same entry/office function. Cal-Royal's AG00 entrance lever is another Grade 2 option, keyed to a 6-pin Schlage C keyway on a 2-3/8 inch backset, which matters if your building is already on Schlage C keys, since the CL3851 comes standard in the Corbin Russwin L4 keyway. Hager's 2525 is a Grade 2 commercial entry lever covering 1-3/8 inch to 2 inch doors if you need the thicker range.
    13) Is there a lighter-duty entrance/office lever if the door does not need a Grade 2 commercial lock?
    The Cal-Royal AUS00 covers the same entrance/office function at Grade 3, with a solid brass forged body and the same 1-3/8 inch to 1-3/4 inch door thickness range as the Corbin Russwin CL3851. The CL3851 is Grade 2 with a zinc-dichromated steel substrate and carries ANSI/BHMA function F109 with a UL/cUL 3-hour fire rating, so on a rated opening the CL3851 is the one that answers the code question.
    14) What should I order for the doors in the same run that do not need to lock?
    Pair the keyed CL3851 with a passage lever on the doors that only need latching. The Falcon B101 is a Grade 2 medium-duty non-handed cylindrical passage lever, matching the CL3851's Grade 2 medium-duty, non-handed build; the Hager 2510 is a Grade 2 passage lever with the Withnell design for 1-3/8 inch to 2 inch doors; and the Accentra 5301LN Augusta is a Grade 2 passage/closet lever in the 5300 Series. For a door that needs trim only with no latch at all, the BEST 7KC Series 1DT is a Grade 2 medium-duty single dummy lever.
    15) Will the CL3851 work as a restroom lock?
    No - the CL3851 is a keyed entrance/office lock with single-cylinder keying and a push turn button controlling the outside lever, which is not a privacy function. For a restroom or bedroom opening use a privacy set: the Hager 2540 is a Grade 2 privacy cylindrical lock with the Withnell lever for 1-3/8 inch to 2 inch doors, and the Arrow MK02-TA is a Grade 2 privacy cylindrical lock with a Tudor knob, non-keyed and fire rated.
    16) Is a knob-style entrance lock like the Arrow HK11 the same thing as the CL3851?
    They share the function but not the trim or the accessibility story. The Arrow HK11-BB is a turn-pushbutton entrance cylindrical lock with a ball knob and a conventional cylinder for 1-3/8 inch to 1-3/4 inch doors, matching the CL3851's door thickness range. The CL3851 is a lever set certified to ADA A117.1, offered in Armstrong, Newport and Princeton lever designs, so where the opening is on an accessible route the lever is the one to specify.
    17) We want to get rid of keys on an office door - what replaces the CL3851?
    A keyless lever set covers that opening. The Delaney LP250 is a Grade 2 electronic keypad lever lock, and 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. The CL3851 takes a conventional 6-pin L4 keyway cylinder as standard and can be ordered LC less cylinder or with SFIC and LFIC core preps, so it stays the choice where the door has to run on the building's existing key system.
    18) For a utility or mechanical room, is the CL3851 enough or do I need an asylum function?
    An asylum function keys both sides; the CL3851 leaves the inside lever always free, which is what you want on an office but not on a room that must be keyed in both directions. For that, the Arrow MK33-BD-CS is a Grade 2 heavy-duty asylum lock with a ball knob and a conventional Schlage C keyway cylinder, and the Dexter C1000 Asylum is the Grade 1 F87 version for 1-3/8 inch to 2 inch doors.
    19) Can I use a residential-grade entry lever like the Kwikset or Master Lock sets in place of the CL3851?
    Those are Grade 3 sets. The Master Lock BC Series RL01 is a Grade 3 return-style keyed entry lever and the Kwikset 200BRNL Breton is a Grade 3 passage lever for 1-3/8 inch to 1-3/4 inch doors. The Corbin Russwin CL3851 is a Grade 2 commercial lockset to ANSI/BHMA A156.2 Series 4000 with a UL/cUL 3-hour fire rating and NFPA 80 compliance, which is what a rated commercial opening is specified against.
    20) Are the levers on the Corbin Russwin CL3851 going to survive a lever getting yanked on?
    The chassis uses Lever Release freewheeling levers, so force applied to the lever spins it free instead of transferring into the mechanism. The levers are solid cast with no plastic inserts, thrubolts hold the chassis against rotation, and the substrate is steel with a zinc dichromate coating for corrosion resistance. A non-handed spring cassette carries the lever, which is what keeps it from sagging over time.
    21) Does the Accentra 4601LN cross over to the Corbin Russwin CL3851?
    Not as a like-for-like. The Accentra 4601LN is a Grade 2 cylindrical lever in the 4600 Series with Augusta trim, but it is a passage function, so it does not lock. The CL3851 is keyed with a deadlocking latchbolt and single-cylinder keying. The 4601LN crosses to the CL3800 Series only on the doors in the same job that are meant to stay unlocked.
    How fast can I get the Corbin Russwin CL3851 NZD 626 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 Corbin Russwin CL3851 NZD 626 come with a warranty?
    Absolutely. The Corbin Russwin CL3851 NZD 626 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 Corbin Russwin CL3851 NZD 626?
    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
    Why buy the Corbin Russwin CL3851 NZD 626 from ZenSupply?
    ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

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