Corbin Russwin Grade 1 Classroom Newport Cylindrical Lever, Large Format IC 6-Pin Prep with Disposable Plastic Core, (Less LFIC CR8000 Core), 2-3/4in Backset, ANSI Strike SA114

Corbin Russwin CLX3355-NZD-626-CT6D Grade 1 Classroom Newport Cylindrical Leverset with Status Indicators, Large Format IC 6-Pin, 2-3/4" Backset

CLX3300 Series Cylindrical Lock with Visual Status Indicators for Enhanced Security and Privacy

The Corbin Russwin CLX3355-NZD-626-CT6D is a Grade 1 Classroom Newport Cylindrical Leverset from the CLX3300 Series, engineered to deliver style, security, and enhanced privacy for both new construction and retrofit projects. Featuring six customizable indicator windows that provide instant at-a-glance visibility of the door's locked or unlocked status on the inside, outside, or both sides of the door, this leverset is purpose-built for high-traffic classrooms, restrooms, and any environment where safety and privacy are critical. Designed for doors with a 2-3/4" (70mm) backset and a standard door thickness range of 1-3/4" to 2" (44mm to 51mm), it requires a minimum stile of 4-1/2" (114mm) and features a stainless steel deadlatch with a 1/2" (13mm) throw. The unit ships with a Large Format IC 6-Pin Prep and Disposable Plastic Core (Less LFIC CR8000 Core) and includes an ANSI Strike SA114, making it a complete, ready-to-install classroom security solution.

Professional Features & Benefits

• Visual Status Indicators: Six customizable indicator windows provide instant visibility of the door's lock status from the inside, outside, or both sides of the door for complete visual assurance at all times.
• Door Compatibility: Designed for a 2-3/4" (70mm) backset with a 1-1/8" (29mm) front (standard), accommodating door thicknesses of 1-3/4" to 2" (44mm to 51mm) and a minimum stile of 4-1/2" (114mm).
• Exceeds ANSI/BHMA Grade 1 Standards: Surpasses ANSI/BHMA A156.2 Grade 1 requirements for strength and durability, ensuring long-term reliable performance in high-traffic commercial applications.
• UL/cUL Listed for 3-Hour Fire Doors: Certified for use on 3-hour fire-rated doors, supporting life-safety compliance in demanding commercial environments.
• ADA-Compliant Levers: Newport lever design meets ADA accessibility requirements, ensuring easy operation for all building occupants.
• Non-Handed, Simplified Installation: Non-handed design installs on any door regardless of swing direction, reducing installation time and eliminating handing errors for new construction or retrofit applications using a standard bored lock door prep.
• Large Format IC 6-Pin Prep: Ships with a Disposable Plastic Core (Less LFIC CR8000 Core), supporting large format, small format, and conventional cylinder formats with 6-pin or 7-pin configurations for flexible keying options.
• Master Keying Capability: Can be master keyed or grand master keyed; construction key systems are also available for phased project security management.
• Durable Latchbolt Construction: Stainless steel deadlatch with a 1/2" (13mm) throw; front available in wrought brass, bronze, or stainless steel measuring 2-1/4" x 1-1/8" (57mm x 29mm) standard for the 2-3/4" backset.
• Patented Design: Corbin Russwin's patented CLX3300 Series design provides a unique combination of security, privacy, and status visibility not found in standard cylindrical locks.

Technical Specifications

• Subcategory: Cylindrical Locks
• Product Group: Mechanical Locks
• Series: CLX3300 Series
• Grade: Grade 1
• Keyed Function: Single Cylinder
• Lock Function Description: Deadlocking latchbolt by key in outside lever or by rotating inside lever. Lever handle is freewheeling in locked position. Inside lever always free.
• 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
• Lock Type: Cylindrical
• Handle Type: Lever
• Lock Function: Storeroom/Closet
• Product Attribute: Cylindrical Locks
• Product Model: CLX3355
• Product Function: Classroom
• 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

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" to 2"), minimum stile width of 4-1/2" (114mm), and 2-3/4" backset boring as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces for the standard bored lock door prep.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions, accommodating flat doors and doors beveled 1/8" in 2" (3mm in 51mm).
4. Install all mounting hardware and secure the cylindrical leverset to the door per manufacturer torque specifications, noting the non-handed design requires no handing adjustment.
5. Install the ANSI Strike SA114 on the door frame, aligning with the deadlatch for proper engagement; the ANSI curved lip strike measures 4-7/8" x 1-1/4" x 1-1/4" (124mm x 32mm x 32mm) lip to center.
6. Insert the appropriate LFIC core (CR8000 Series, sold separately) into the Large Format IC prep and configure master keying or construction key system as required.
7. Test device operation to verify proper latchbolt function, status indicator visibility, and smooth lever operation throughout the full range of motion. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• K-12 and Higher Education Classrooms
• Healthcare Facility Patient Rooms and Restrooms
• Commercial Office Buildings
• High-Traffic Public Restrooms
• Government and Municipal Buildings
• Retail Establishments
• Multi-Tenant Residential and Mixed-Use Properties

Why Choose Corbin Russwin Quality?

Corbin Russwin CLX3300 Series cylindrical locks exceed ANSI/BHMA A156.2 Grade 1 standards and carry UL/cUL listing for 3-hour fire doors, delivering a level of performance and certification that goes beyond the minimum requirements for commercial door hardware. The patented status indicator design, ADA-compliant Newport levers, and steel substrate with zinc dichromate corrosion resistance reflect a commitment to durability and accessibility in demanding environments. Engineered for both new construction and retrofit applications, Corbin Russwin cylindrical leversets provide the professional-grade reliability that architects, contractors, and facility managers depend on.