Corbin Russwin CL3561 NZD Grade 1 Entry/Office Cylindrical Lock, Newport Lever, SFIC Less Core

Corbin Russwin CL3561 NZD Grade 1 Entry/Office Cylindrical Lever Lock, Newport Lever, SFIC Less Core

Heavy-Duty Commercial Cylindrical Lockset for Entrance and Office Applications

The Corbin Russwin CL3561 NZD Grade 1 Entry/Office Cylindrical Lever Lock is a heavy-duty, ANSI/BHMA Grade 1 certified keyed cylindrical lever lock engineered for demanding commercial, institutional, and multi-family environments. Featuring the Newport (NZD) lever in a 626 Satin Chrome finish, this lockset accommodates door thicknesses from 1-3/8" to 1-3/4" with a 2-3/4" backset, and is supplied SFIC (Small Format Interchangeable Core) Less Core for flexible keying system integration. Part of the CL3500 Series, it complements the CL3300 Series Extra Heavy-Duty Grade 1 and CL3800 Series Standard-Duty Grade 2 locksets, allowing consistent aesthetics and reduced project costs across an entire facility.

Professional Features & Benefits

• Door Thickness Compatibility: Designed for doors ranging from 1-3/8" to 1-3/4" thick with a 2-3/4" backset, ensuring broad compatibility with standard commercial door preparations.
• ANSI Function F82A (Entrance/Office): Deadlocking latchbolt operated by lever from either side, except when push button locks the outside lever. Push button is released by turning the inside lever or by key in the outside lever; closing the door does not release the push button, and the inside lever remains always free.
• ANSI/BHMA Grade 1 Certification: Meets the highest commercial duty rating for cylindrical locksets, providing fire-rated performance and long-term reliability in high-traffic applications.
• Solid Cast Newport Lever & Non-Handed Design: Solid cast levers with independent return springs prevent lever sag, and the non-handed configuration simplifies installation on any door without special ordering.
• Through-Bolted Cylindrical Chassis: Prevents rotation and ensures proper alignment throughout the life of the lock, maintaining consistent operation in heavy-use environments.
• Standard Cylinder & Strike Included: Supplied with a brass, 6-pin, L4 keyway cylinder (0-bitted standard), two nickel silver keys, and an ANSI curved lip strike measuring 4-7/8" x 1-1/4" with 1-1/4" lip to center.
• SFIC Less Core Configuration: Prepared for Small Format Interchangeable Core systems, allowing facility managers to integrate with existing master key or access control programs without replacing the entire lockset.
• Trim & Keying Compatibility: Trim and keying are compatible with other Corbin Russwin locksets, reducing overall project cost when combining cylindrical lockset series throughout a facility.
• Corrosion-Resistant Construction: Chassis constructed of steel with zinc dichromate treatment for corrosion resistance, supporting long service life in commercial environments.

Technical Specifications

• Subcategory: Cylindrical Locks
• Product Group: Mechanical Locks
• Series: CL3500 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
• Product Subgroup: Bored Locksets
• Product Type: Leversets
• Keyed: Yes
• Commercial/Residential: Commercial
• Function Description: Deadlocking latchbolt by lever either side except when push button locks outside lever. Push button released by turning inside lever or by key in outside lever. Closing door does not release push button. Inside lever always free.
• Lock Type: Cylindrical
• Handle Type: Lever
• Lock Function: Entrance/Office
• Product Attribute: Cylindrical Locks
• Product Model: CL3561
• 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

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/8" to 1-3/4"), 2-3/4" backset, stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Interior Office Environments
• Apartment Complexes and Multi-Family Residential Properties
• Convalescent and Elderly Care Facilities
• Hotels and Hospitality Establishments
• Restaurants and Retail Centers
• Educational and Institutional Buildings
• Government and Municipal Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3500 Series cylindrical locksets deliver professional-grade reliability with solid cast levers, independent return springs, and a through-bolted chassis constructed of steel with zinc dichromate corrosion resistance. ANSI/BHMA Grade 1 certified and fire rated, the CL3561 NZD is engineered for demanding commercial applications where consistent, dependable performance is essential across high-traffic doors. Trim and keying compatibility with other Corbin Russwin locksets further ensures long-term value and flexibility for facility-wide installations.