Corbin Russwin CL3375 Grade 1 ...
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Corbin Russwin Corbin Russwin CL3375 Corridor/Dormitory Extra Heavy-Duty Cylindrical Lever Lock COR-CL3375-KEYED

Corbin Russwin CL3375 Grade 1 Corridor/Dormitory Extra Heavy-Duty Cylindrical Lever Lock

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Model: CL3375 NZD 626 CL6
$1,058.00
$635.44
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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 CL3375-KEYED Corridor/Dormitory Extra Heavy-Duty Cylindrical Lever Lock with Pushbutton Security

Grade 1 Commercial Cylindrical Lockset for Corridor and Dormitory Applications

The Corbin Russwin CL3375-KEYED is an extra heavy-duty, Grade 1 commercial cylindrical lever lock engineered for corridor and dormitory applications (ANSI function F90). Designed for doors ranging from 1-3/4" to 2" in thickness with a 2-3/4" backset, this lockset delivers dependable security through a pushbutton locking mechanism that can be released by turning the inside lever or by closing the door. Constructed with steel and zinc dichromated components for corrosion resistance, the CL3375 is part of the proven CL3300 Series and is fire rated for added code compliance in demanding commercial environments.

Professional Features & Benefits

  • Grade 1 cylindrical lockset per ANSI/BHMA A156.2 Series 4000, Grade 1
  • Lever Release™ design for vandal resistance — outside lever rotates freely when locked
  • EZ-Install components significantly reduce installation time
  • Independent return springs prevent lever sag
  • 4 solid cast lever options (Armstrong, Newport, Princeton, Frascati)
  • Anti-rotational through-bolts at 6 and 12 o'clock positions
  • Accommodates 6 or 7-pin conventional cylinders and all keying levels
  • CL3352 Classroom Intruder function: double-cylinder lockset, always-free egress
  • Available with MicroShield® antimicrobial coating (suffix option code "C")
  • CL33900 electrified option: fail safe and fail secure, 12 or 24VAC/VDC
  • ElectroLynx® 8-pin connector on all electrified products
  • Seven-year limited warranty (two-year for electrified)

Technical Specifications

  • Grade: ANSI/BHMA A156.2 Series 4000, Grade 1
  • Handing: Non-handed (except FZD trim)
  • Door Thickness: 1-3/4" (44mm) 2" (51mm) standard; optional over 2" 2-1/4" (57mm)
  • Backset: 2-3/4" (70mm) standard; optional 3-3/4" (95mm) and 5" (127mm)
  • Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) fire latch
  • Auxiliary Latchbolt: Deadlocking — prevents manipulation when door is closed
  • Lock Chassis: Steel, zinc dichromated for corrosion resistance
  • Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8"
  • 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: 12VAC/DC or 24VAC/DC (CL33900 Series)
  • Electrified Current: 250mA @ 12VAC/VDC; 150mA @ 24VAC/VDC, continuous duty solenoid
  • Certifications: ANSI/BHMA A156.2 Grade 1; UL-cUL listed; ANSI A117.1 Accessibility; California State Fire Marshal
  • Warranty: Seven-year limited (two-year for CL33900 electrified)

Professional Applications

  • Commercial Office Buildings and Corporate Campuses
  • College and University Dormitory Facilities
  • Educational Institutions and K-12 Schools
  • Healthcare Institutions and Medical Facilities
  • Hotel and Hospitality Properties
  • Government and Municipal Buildings
  • Industrial and Institutional Facilities

Vandal-Resistant Design

The CL3375 features the Lever Release™ design, which allows the outside lever to rotate freely when in the locked position. This engineered response to vandalism prevents lever damage and maintains the integrity of the locking mechanism even under deliberate abuse, making it an ideal choice for high-traffic and high-risk environments.

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3300 Series cylindrical locksets are manufactured with steel and zinc dichromated components for corrosion resistance, delivering Grade 1 extra heavy-duty performance rated for greater than 57 years of operation under typical commercial use conditions. Every CL3375 is backed by a 7 Year Limited warranty and engineered to meet ANSI/BHMA Grade 1 standards, making it a trusted choice for demanding commercial, institutional, and industrial applications where dependable security and long-term reliability are essential.

Manufacturer Resources

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL3300 Series
Grade:
Grade 1
Duty Level:
Heavy 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:
F90
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
Throw-off latchbolt by lever either side except when pushbutton or key locks outside lever. Pushbutton released by turning inside lever or by closing door.
Lock Type:
Cylindrical
Handle Type:
Lever
Lock Function:
Corridor/Dormitory
Product Attribute:
Cylindrical Locks
Product Model:
CL3375
Product Function:
Corridor/Dormitory
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 CL3375 NZD 626 CL6 – Frequently Asked Questions

1) Will the Corbin Russwin CL3375 corridor lock fit a 1-3/4 inch commercial door?
Yes, 1-3/4 inch is right in range. The CL3375 covers doors 1-3/4 inch to 2 inch thick with a 2-3/4 inch backset, which is the standard commercial bore on a Grade 1 opening. If your doors are thinner 1-3/8 inch interior slabs, this is not the lock for them.
2) How does the corridor/dormitory function on the Corbin Russwin CL3375 actually work day to day?
It's ANSI function F90. The latch retracts by lever from either side unless the pushbutton or the key locks the outside lever. Once the button is pushed, the outside lever stays locked until someone turns the inside lever or the door is closed, which releases it. That means residents can't accidentally leave a corridor door locked out after they close it behind them, and the inside always gives free egress.
3) Is the CL3375 lever lock handed, or can I stock one part for both door swings?
Non-handed, so one lockset covers left and right swings. The only exception in the CL3300 line is FZD trim. For a property manager buying for a floor of dorm rooms, that means a single part number on the shelf regardless of which way each door swings.
4) Can the Corbin Russwin CL3375 go on a fire rated door?
Yes, the CL3375 is fire rated and the CL3300 Series carries UL-cUL listing along with California State Fire Marshal approval. Standard latchbolt throw is 1/2 inch stainless steel, and a 3/4 inch throw fire latch is available as an option, which is what many fire door assemblies call for on a pair or a wider gap.
5) Can the CL3375 be keyed into my existing Corbin Russwin master key system?
It takes a conventional 6-pin cylinder in the L4 keyway as standard, 0-bitted, and the CL3300 chassis accepts 6 or 7-pin conventional cylinders at all keying levels. If you run small format interchangeable core, order it less core as CL6 (6-pin LFIC) or CL7 (7-pin LFIC) and drop your own Corbin Russwin cores in. If your locksmith is supplying the cylinder from another system entirely, order LC and it ships less conventional cylinder.
6) What is the closest Grade 1 cylindrical lever lock to the Corbin Russwin CL3375 if I need a keyed function for an office or entry door instead of corridor/dormitory?
The Corbin Russwin CL3375 is a Grade 1 cylindrical lever lock with the corridor/dormitory function, where the latchbolt is thrown off by the lever either side except when the pushbutton or key locks the outside lever. If the opening is an office or entry door rather than a corridor or dorm room, the Dexter C1000 Series entry/office lever lock is also Grade 1 cylindrical, with a clutching keyed lever, and fits doors 1-3/8 inch to 1-3/4 inch thick. The functional difference matters: the CL3375 pushbutton releases by turning the inside lever or by closing the door, which suits a dorm room a resident secures behind them, while an entry/office function is the one specified where staff lock and unlock the door by key through the day.
7) The CL3375 pushbutton function is not right for a classroom door - what Grade 1 lever lock should I use instead?
The Corbin Russwin CL3375 is a corridor/dormitory function lock: the pushbutton locks the outside lever and is released by turning the inside lever or by closing the door. On a classroom door, that release-on-close behavior is usually not what is specified, because a teacher needs the door to stay locked after it closes. The Dexter C1000 Series classroom lever lock is a Grade 1 cylindrical lock with the classroom function, clutching and keyed, for doors 1-3/8 inch to 1-3/4 inch thick, and Dexter also builds a Grade 1 classroom security version of the C1000 with a cylinder for locking from inside the room. Cal-Royal also offers a classroom lever in the AG Series, the AG03, with a 6-pin Schlage C keyway keyed different and a 2-3/4 inch backset, which matches the CL3375 backset.
8) Will a residential Grade 3 lever work in place of the Corbin Russwin CL3375 on an apartment or dorm door?
They are specified for different duty. The Corbin Russwin CL3375 is a commercial, extra heavy-duty Grade 1 cylindrical lever lock on a steel, zinc dichromated chassis, fire rated, for doors 1-3/4 inch to 2 inch thick. Grade 3 levers such as the Kwikset 200BRNL Breton passage and the Kwikset 300BRNL Breton privacy fit 1-3/8 inch to 1-3/4 inch doors, and the Master Lock BC Series keyed entry return lever and the Cal-Royal AUS00 entrance/office lever are Grade 3 as well, the AUS00 for 1-3/8 inch to 1-3/4 inch doors. If the specification on the drawing calls for ANSI/BHMA Grade 1 or the door is fire rated, a Grade 3 lever does not meet it, and the thinner door range means it will not land on a 2 inch door either.
9) Can I mix Corbin Russwin CL3375 locks with another brand's levers and keep one key?
Keying is what decides this, not the lever design. The Corbin Russwin CL3375 ships with a conventional 6-pin cylinder in the L4 keyway and is also ordered less core for Corbin Russwin 6-pin or 7-pin large format interchangeable core, or less conventional cylinder entirely. Several comparable locks are keyed to a Schlage C keyway instead, including the Cal-Royal AG03 classroom lever and the Cal-Royal AG00 entrance lever, both 6-pin Schlage C keyed different, and the Arrow MK33-BD-CS in Schlage C. Those will not operate on an L4 key. Accentra also offers the 107S, a Schlage cylinder adapter kit for Yale hardware, which is the kind of part that bridges a keyway mismatch on that brand's locks. For a facility standardizing on one key, specify the CL3375 less core or less cylinder and have the cylinders supplied to your existing keyway.
10) Should I order these keyed alike or keyed different for a dorm floor?
Keyed different is the standard on the CL3375 and it's what you want for individual dorm or tenant rooms, where each occupant gets a unique key. Keyed alike makes sense when one person needs a single key for a group of openings, say a set of service or storage doors in the same wing. Both are orderable, and there's a free text field for special cylinder or keying requirements if you're pinning into an existing system.
11) What holds up in a dorm or school corridor where levers get abused?
The CL3375 uses the Lever Release design: when the lock is thrown, the outside lever spins free instead of resisting, so someone hanging on it or kicking it down doesn't snap the spindle or wreck the chassis. Independent return springs keep the lever from sagging over years of use, and anti-rotational through-bolts at 6 and 12 o'clock stop the trim from turning on the door face. The chassis is steel, zinc dichromated for corrosion resistance.
12) What's the difference between a corridor lock and a classroom or storeroom lock?
Corridor function (F90) locks from the inside with a pushbutton, and that button cancels when the inside lever turns or the door closes, so the opening won't stay locked accidentally. A classroom lock is keyed from the outside only, with no inside button, which is why schools that want the teacher to lock down without stepping into the hall pick classroom security instead. A storeroom lock stays locked at all times and needs a key every entry. For a room whose occupant decides moment to moment whether it's locked, a dorm room or an office off a corridor, F90 is the one. If you need always-locked, look at a storeroom function such as the Cal-Royal AG05, or the Dexter C1000 Classroom Security for the lockdown case.
13) What's a Grade 1 alternative to the Corbin Russwin CL3375 from another brand?
For Grade 1 cylindrical keyed levers, the Dexter C1000 Series is the closest cross-brand family we carry, with an Entry/Office version rated for 1-3/8 to 1-3/4 inch doors and Classroom and Classroom Security versions in the same range. Note the thickness difference: the C1000 entry and classroom versions stop at 1-3/4 inch, while the CL3375 runs 1-3/4 to 2 inch, so on a 2 inch door the Corbin Russwin is the one that fits. Falcon's K Series is also Grade 1, heavy duty and fire rated, spanning 1-3/8 to 2-1/4 inch doors, but the K101 we stock is passage function with no locking at all.
14) Is a Grade 2 lever lock good enough for a corridor door, or do I need Grade 1?
Grade 1 is the top ANSI/BHMA cylindrical rating and the CL3375 meets A156.2 Series 4000 Grade 1, rated for extra heavy duty commercial traffic. Grade 2 options like the Hager 2525 entry lever or the Falcon B511CP6D entry/office lever are medium duty and cost less to put on a door, which is reasonable for a low-traffic interior office. On a dorm corridor, a school hallway, or a hospital wing where the same door cycles all day, Grade 1 is the spec that holds up, and most institutional specs write it that way.
15) Does the CL3375 meet ADA lever requirements for an accessible opening?
The CL3300 Series is listed to ANSI A117.1 Accessibility, and the CL3375 is a lever rather than a knob, which is what accessible openings call for. All three lever designs offered, Armstrong, Newport and Princeton, are solid cast levers on the same chassis.
16) Can I get a CL3300 corridor lock for a door thicker than 2 inches or with a deeper backset?
The CL3300 Series lists an optional door thickness over 2 inches up to 2-1/4 inches, and optional backsets of 3-3/4 inches and 5 inches beyond the 2-3/4 inch standard. Those deeper backsets are what you need on a door with a wide stile or a pull that would otherwise crowd the lever. Both are special-order configurations rather than the standard build, so specify them on the order.
17) Can I get this Corbin Russwin corridor lock electrified for access control?
Electrification is handled by the CL33900 option in the same series, available fail safe or fail secure at 12 or 24VAC/VDC, drawing 250mA at 12V and 150mA at 24V on a continuous duty solenoid. Every electrified unit uses the ElectroLynx 8-pin connector, so it plugs into an ElectroLynx electric hinge or transfer without field-splicing wires. Fail safe unlocks on power loss for egress-critical openings; fail secure stays locked, which is the usual pick for a dorm room or a secured suite.
18) Can someone card the latch on a CL3375 to get into a dorm room?
No. The CL3375 latch includes a deadlocking auxiliary latchbolt, which drops against the strike as the door closes and blocks the main latch from being pushed back by a card or shim. That's a functional requirement on any exterior or secured opening, and it's why the deadlatch front, not a plain spring latch, is standard on this lock.
19) Is there a Grade 2 alternative to the Corbin Russwin CL3375 for a storeroom or entry door on a lighter-traffic building?
The Corbin Russwin CL3375 is a Grade 1 extra heavy-duty commercial cylindrical lever lock. For a building where a Grade 2 lever is acceptable, the Hager 2580 is a Grade 2 cylindrical storeroom lock with the Withnell lever, for doors 1-3/8 inch to 2 inch thick, and the Hager 2525 is a Grade 2 cylindrical entry lock with a lever handle across the same 1-3/8 inch to 2 inch thickness range. Cal-Royal's AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for doors 1-3/8 inch to 1-3/4 inch. Note that the functions differ from the CL3375: a storeroom lever keeps the outside lever locked at all times and is opened only by key, while the CL3375 outside lever is free until the pushbutton or key locks it.
20) I need a matching non-keyed lever on the closet and hall doors next to my CL3375 dorm room locks - what works?
The Corbin Russwin CL3375 is a keyed single-cylinder lever lock, so it is not the part for an opening that needs no key at all. For the passage doors alongside it, the Falcon K101 is a Grade 1 heavy-duty passage cylindrical lock with non-handed levers, fire rated, for doors 1-3/8 inch to 2-1/4 inch thick, which covers the same 1-3/4 inch to 2 inch doors the CL3375 fits. The Falcon T101 is also a Grade 1 heavy-duty passage lever in the T Series. Design Hardware's X75 is a Grade 1 passage lever lockset with a flat lever for 1-3/4 inch doors. All three keep you at Grade 1 on the non-keyed openings rather than dropping duty level partway down the corridor.
21) Can a keypad or keyless lever lock be used in place of the Corbin Russwin CL3375 on a dorm room door?
It is a different kind of lock, and worth checking against the spec before substituting. The Corbin Russwin CL3375 is a Grade 1 cylindrical lever lock, fire rated, keyed with a conventional 6-pin L4 keyway cylinder, and it locks by pushbutton with the key as the override. A mechanical keypad lever such as the Lockey 2835, which is a keyless pushbutton lever with passage function for doors 1-3/16 inch to 2 inch thick, or the Lockey 1150 heavy-duty keypad lever set for 1-1/8 inch to 2 inch doors, controls access by code rather than by key and is a passage-function lock, so it does not drop into a keyed corridor or dorm opening or carry the CL3375 keying. The Delaney LP250 electronic keypad leverlock is Grade 2. If the opening is fire rated or the keying has to tie into an existing key system, the keyed cylindrical lever is the one that answers that.
22) What looks like a substitute for the Corbin Russwin CL3375 but will not actually secure the door?
Dummy and single dummy trims look like the same lever on the same rose but have no latch and no chassis. The BEST 9K Series 1DT is a Grade 1 non-keyed heavy-duty single dummy trim cylindrical lever, the Accentra 455LN Augusta is a Grade 1 single dummy in the 5400 Series, and the BEST 7KC Series 1DT is a Grade 2 medium-duty single dummy. Those are pull trim for an inactive leaf. The Corbin Russwin CL3375 is a keyed Grade 1 cylindrical lockset with a deadlatch, a 2-1/4 inch by 1-1/8 inch front at a 2-3/4 inch backset and an ANSI curved lip strike, so it is the lock that actually latches and keys the opening. Order a dummy only for the leaf that never latches.
23) Which lever lock should I use for a patient room or utility door where the CL3375 corridor function does not apply?
The Corbin Russwin CL3375 is built around a pushbutton that releases when the inside lever is turned or the door closes, which is a corridor and dormitory behavior. For an asylum or institutional opening that needs a key on both sides and no free inside lever, the Dexter C1000 Series asylum lock is a Grade 1 cylindrical lock in the asylum function, ANSI F87, for doors 1-3/8 inch to 2 inch thick. Arrow's MK33-BD-CS is a Grade 2 asylum, institution and utility function lock with a ball knob and a conventional cylinder in the Schlage C keyway, heavy duty, if a knob rather than a lever suits the opening.
24) What is the difference between the Corbin Russwin CL3375 and a Grade 2 medium-duty cylindrical lever from Falcon?
Duty level and chassis. The Corbin Russwin CL3375 is an extra heavy-duty Grade 1 cylindrical lever lock in the CL3300 Series on a steel, zinc dichromated chassis, non-handed, with a deadlocking auxiliary latchbolt. The Falcon B511CP6D is a Grade 2 medium-duty cylindrical lever lock with entry/office function, and the Falcon B101 is a Grade 2 medium-duty passage lever in the B Series. Falcon's K Series K101 sits at Grade 1 heavy duty with non-handed levers and fire rating for doors 1-3/8 inch to 2-1/4 inch. For a dorm corridor or a school running constant traffic, the Grade 1 chassis is the one written into most specifications; a medium-duty Grade 2 is specified for interior openings with lighter cycle counts.
25) What finish should I order to match the rest of the doors in my building?
The CL3375 comes in 14 finishes, so matching existing hardware is usually straightforward. Brass: 605 bright, 606 satin. Bronze: 611 bright, 612 satin, 613 satin oil-rubbed, 613E dark oxidized equivalent, 613L dark oxidized oil-rubbed, 722 black oxidized oil-rubbed. Nickel: 618 bright, 619 satin. Chrome: 625 bright, 626 satin. Plus BSP black suede and WSP white suede powder coat. For institutional and healthcare work, 626 satin chrome and 630-family satin stainless looks are the usual standard; 626 is the one to order here.
26) Is there an antimicrobial version of the CL3375 for a healthcare facility?
Yes. MicroShield antimicrobial coating is available on the CL3300 Series under option code C, which is what hospitals and clinics typically specify on patient-area levers. It's an ordering option on the same Grade 1 chassis, so the function, backset and strike prep don't change.
27) I only need a privacy lock on the bathroom doors, not the keyed CL3375 - what is the equivalent?
The Corbin Russwin CL3375 is keyed with a single cylinder, which a bathroom or bedroom door does not call for. The Arrow MK02-TA is a privacy, bed and bath function cylindrical lock with a Tudor knob, Grade 1, fire rated, for doors 1-3/4 inch to 2 inch thick, the same thickness range the CL3375 covers. The Hager 2540 is a Grade 2 privacy cylindrical lock with the Withnell lever for 1-3/8 inch to 2 inch doors if a lever is wanted on those openings. A privacy lock has a thumbturn and emergency release rather than a keyway, so it will not key into the same system as the CL3375.
28) Is a decorative entry lever a valid alternative to the Corbin Russwin CL3375 on a commercial opening?
They answer different specs. The Corbin Russwin CL3375 is a commercial Grade 1 cylindrical lockset, fire rated, with a 2-3/4 inch backset and ANSI curved lip strike, carrying solid cast lever options including Armstrong, Newport and Princeton. Decorative entry levers such as the Deltana 6201 Manchester, 6411 Morant and 6431 Linstead fit doors 1-3/8 inch to 2 inch thick in an entry function, and the Baldwin Estate 5103 comes as passage, privacy and half dummy with the 5048 rose. Those are chosen for appearance on a front or interior door. On a fire rated corridor or dorm opening where the drawing calls for ANSI/BHMA Grade 1, the cylindrical lockset is what satisfies it.
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Does the Corbin Russwin CL3375 NZD 626 CL6 come with a warranty?
Absolutely. The Corbin Russwin CL3375 NZD 626 CL6 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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