Corbin Russwin CL3520 Grade 2 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$778.32
$674.94
Corbin Russwin Corbin Russwin CL3520 Privacy Heavy-Duty Cylindrical Lever Lock COR-CL3520-NON-KEYED

Corbin Russwin CL3520 Grade 2 Privacy Heavy-Duty Cylindrical Lever Lock

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Model: CL3520 NZD 626
$778.32
$674.94
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$778.32
$674.94
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Corbin Russwin CL3520-NON-KEYED Heavy-Duty Grade 1 Privacy Cylindrical Lever Lock with Push-Button Locking

Commercial-Grade Privacy Security for Bed, Bath, and Institutional Applications

The Corbin Russwin CL3520 is a heavy-duty, non-keyed cylindrical lever lock engineered to ANSI function F76A (Privacy Lock) for demanding commercial, institutional, and multi-family environments. Designed for doors ranging from 1-3/8" to 1-3/4" in thickness with a 2-3/4" backset, this Grade 1 leverset delivers reliable privacy functionality through a push-button outside locking mechanism with a freewheeling lever in the locked position. The outside lever can be unlocked by an emergency release tool from outside, by rotating the inside lever, or simply by closing the door, while the inside lever remains always free. Constructed from steel with zinc dichromated corrosion-resistant substrate, the CL3520 is part of the CL3500 Series, which complements the CL3300 Series Extra Heavy-Duty Grade 1 and CL3800 Series Standard-Duty Grade 2 locksets for a cohesive cylindrical lockset family throughout any facility.

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 Privacy Rooms
  • Apartment and Multi-Family Residential Complexes
  • Convalescent and Elderly Care Facilities
  • Hotel Guest Rooms and Suites
  • Restaurant Restrooms and Private Dining Areas
  • Retail Center Fitting Rooms and Private Offices
  • Educational and Institutional Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3500 Series cylindrical lever locks deliver professional-grade reliability with solid cast levers, independent return springs, and a through-bolted cylindrical chassis engineered to ANSI/BHMA Grade 1 certification standards. The CL3520 is constructed from steel with zinc dichromated corrosion-resistant substrate and is backed by a 7 Year Limited warranty, providing lasting confidence for demanding commercial and institutional installations. Trim and keying compatibility with other Corbin Russwin locksets further reduces overall project costs without compromising functionality or durability.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL3500 Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Keyed Function:
Non-Keyed
Standard Latch:
Springlatch - 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:
F76A
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
No
Commercial/Residential:
Commercial
Function Description:
Throw-off latchbolt by lever, outside lever locked by push button (freewheeling in locked position) and unlocked by emergency release tool outside, by rotating inside lever or by closing door. Inside lever always free.
Lock Type:
Cylindrical
Handle Type:
Lever
Lock Function:
Privacy/Bed/Bath
Product Attribute:
Cylindrical Locks
Product Model:
CL3520
Product Function:
Privacy/Bed/Bath
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

Corbin Russwin CL3520 NZD 626 – Frequently Asked Questions

1) Will the Corbin Russwin CL3520 privacy lever fit a 1-3/4 inch door with a 2-3/4 inch backset?
Yes. The CL3520 cylindrical privacy lockset covers doors from 1-3/8 inches to 1-3/4 inches thick and comes with a 2-3/4 inch backset as standard, which is the usual commercial bore layout. It is non-handed, so one lock works on a left or right hand opening without any field conversion.
2) How does the CL3520 privacy function actually work if someone locks themselves in a restroom?
The CL3520 is ANSI function F76A. The outside lever is locked with a push button on the inside; once locked, the outside lever freewheels so forcing it does not damage the chassis. Staff can get in with an emergency release tool from outside, and the lock also releases when the inside lever is rotated or simply when the door is closed. The inside lever is always free for egress.
3) Can the CL3520 be keyed into our master key system?
No. The CL3520 is a non-keyed privacy function with push-button locking only, so there is no cylinder to key. If the opening needs key control, specify a keyed function from the CL3500 Series instead, such as an entry, office or storeroom lockset.
4) What is a comparable commercial privacy lever lock to the Corbin Russwin CL3520?
The Corbin Russwin CL3520 is a non-keyed privacy/bed/bath cylindrical lever lock for 1-3/8 inch to 1-3/4 inch doors with a 2-3/4 inch backset. For a lever privacy lock from another commercial line, the Hager 2540 uses the Withnell lever and covers 1-3/8 inch to 2 inch doors at Grade 2. If the opening can take a knob instead of a lever, the Arrow MK02-TA is a non-keyed privacy cylindrical lock with a Tudor knob and a fire rating. Choose by trim style and door thickness first.
5) If a door does not need to lock, what should be used instead of the CL3520 privacy lever?
The CL3520 is a privacy function lock with a push-button on the outside lever, so it is meant for bed, bath, and similar rooms. On a corridor, closet, or hall door that only needs latching, a passage lever is the right part: the Falcon K101 is a Grade 1 passage cylindrical lock with non-handed levers, fire rated, for 1-3/8 inch to 2-1/4 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.
6) Can I use a privacy lever like the CL3520 on a rated fire door?
The CL3520 carries a fire rating, and it uses a springlatch with a square corner front measuring 2-1/4 by 1-1/8 inches on a 2-3/4 inch backset. Since it is non-keyed with a free inside lever, it gives latching and egress on a rated opening. Match the latch and strike prep in the door and frame to the same dimensions so the assembly stays intact.
7) Is the CL3520 tough enough for apartment bathrooms and hotel guest rooms, or should I use a residential privacy lever?
This is a heavy duty commercial cylindrical lockset, built on a steel chassis with a zinc dichromated corrosion resistant substrate and a freewheeling lever that resists being levered on in a locked state. That is aimed at multi-family, hospitality and institutional traffic. For a light residential interior door where cost matters more than cycle life, a Grade 3 privacy set such as the Kwikset 300BRNL Breton is the lighter alternative.
8) I need a passage lever to match these privacy locks on the other doors. What pairs with the CL3520?
The CL3520 is the non-keyed privacy member of the Corbin Russwin CL3500 Series, so the matching passage, entry and keyed functions in that same series share the lever designs and finishes for a consistent look down a corridor. If you are mixing brands instead, comparable non-keyed passage levers include the Falcon K101 Grade 1 heavy duty passage lock and the Dexter C1000 Series passage lever, both non-keyed cylindrical types.
9) Will a cylindrical lever lock like the CL3520 work on a narrow aluminum stile door?
No. This is a bored cylindrical lockset with a 2-3/4 inch backset, which needs a wide enough stile to accept the 2-1/8 inch cross bore. Narrow aluminum stile storefront doors normally take a mortise or deadlatch designed for that stile width instead. Use the CL3520 on standard wood or hollow metal doors 1-3/8 to 1-3/4 inches thick.
10) Can a keyed entry lever be used in place of the CL3520 on a bed or bath door?
They are different functions. The CL3520 is non-keyed: the outside lever is locked by push button and released by an emergency tool, by turning the inside lever, or by closing the door. A keyed entry lever such as the Hager 2525 Grade 2 cylindrical entry lock or the Falcon B511CP6D entry/office lock requires a key from outside, which is not what a bath or bedroom door calls for. Use an entry lock only where keyed control is wanted.
11) Is a dummy lever an alternative to the CL3520?
No. A dummy lever is a pull with no latch and no locking; the CL3520 throws a latchbolt and locks the outside lever by push button. Dummy trim such as the BEST 9K Series 1DT Grade 1 single dummy, the BEST 7KC Series single dummy, or the Baldwin Estate 5103 half dummy is for inactive leaves and closet pairs only. Order dummy trim to match an adjacent active lock, not to replace one.
12) What is the difference between the Corbin Russwin CL3520 and a Grade 2 or Grade 3 lever lock for the same door?
The CL3520 is carried as a Grade 1 heavy duty commercial lever lock. Grade 2 leversets in the same size range include the Hager 2510 passage and the Design Hardware J75 passage; Grade 3 leversets include the Cal-Royal AUS00 entrance/office and the Callan Asheville passage. The grade reflects the ANSI/BHMA cycle and strength test tier, so a facility standardizing on Grade 1 should stay with the CL3520 family rather than mixing tiers across the same traffic level.
13) What is the alternative to the CL3520 if the opening needs keyless code entry rather than a push button?
The CL3520 locks by push button on the outside lever and has no code entry. Where a code is wanted, 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 1150 is a heavy duty mechanical keypad lever set for 1-1/8 inch to 2 inch doors, and the Delaney LP250 is a Grade 2 electronic keypad leverlock. These serve controlled-access openings rather than bed and bath privacy.
14) Which alternatives to the CL3520 fit a door thicker than 1-3/4 inches?
The CL3520 is carried for 1-3/8 inch to 1-3/4 inch doors. For thicker leaves, the Falcon K101 Grade 1 passage lock covers 1-3/8 inch to 2-1/4 inch, the Dexter C1000 asylum covers 1-3/8 inch to 2 inch, and the Hager 2510 and 2525 cover 1-3/8 inch to 2 inch. Measure the leaf at the bore before ordering, since those are different functions than privacy.
15) If a storeroom or classroom door is being locked off the same project as the CL3520, what lock covers it?
The CL3520 handles the privacy openings only. For storerooms on the same job, the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors and the Hager 2580 is a Grade 2 storeroom lock with the Withnell lever. For classrooms, the Cal-Royal AG03 classroom lever uses a 6-pin Schlage C keyway on a 2-3/4 inch backset, and the Dexter C1000 classroom is a Grade 1 clutching keyed lever.
16) What lever styles and finishes does the Corbin Russwin CL3520 come in?
Three lever designs are offered: Armstrong (AZD), Newport (NZD) and Princeton (PZD). Finishes run 14 deep, including 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613, 613E and 613L oil-rubbed bronzes, 618 bright nickel, 619 satin nickel, 625 bright chrome, 626 satin chrome, 722 black oxidized bronze, BSP black suede and WSP white suede powder coat. For a property standardizing existing openings, 626 satin chrome is the common commercial match.
How fast can I get the Corbin Russwin CL3520 NZD 626 delivered?
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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 CL3520 NZD 626 come with a warranty?
Absolutely. The Corbin Russwin CL3520 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 CL3520 NZD 626?
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