Sargent 8200 Series Mortise Lock with LN Rose — Office, Classroom and Dormitory Functions, Less Cylinder, Field Reversible

Sargent 8200 Series Mortise Lock — LN Rose, Less Cylinder, Field Reversible

The Sargent 8200 Series mortise lock is built for demanding commercial environments where security, durability, and key-system flexibility are non-negotiable. With an LN sectional rose design and field-reversible handing, this lock installs cleanly on new construction and retrofit projects alike. Offered in four lock functions — Office/Entry (8205), Dormitory/Exit (8225 & 8245), and Classroom (8237) — and four lever styles (B, J, L, P) in 26D Satin Chromium finish, it covers the full range of commercial door applications from a single product family.

Performance Specifications

• Locked Lever Torque: >3,100 in-lb (2.6× ANSI/BHMA A156.2 Grade 1 requirement)
• Offset Lever Pull Resistance: 1,600 lbs (8× ANSI/BHMA A156.2 requirement)
• Latch Retraction Under Preload: Operates under 100 lb preload (2× ANSI/BHMA A156.2)
• Vertical Impact Resistance: >100 impacts (20× ANSI/BHMA A156.2 requirement)
• ANSI/BHMA Grade: Grade 1 (Heavy Duty)
• Handing: Field reversible
• Cylinder: Less Cylinder (LC) — accepts all cylinder formats including fixed core and interchangeable core
• Rose Design: LN sectional rose
• Finish (this listing): 26D — Satin Chromium Plated Over Nickel
• Compatible Key Systems: Degree, Signature, KESO, and other major commercial key systems
• Available Functions: 26 mechanical functions across the 8200 Series
• Available Finishes: 14 finishes across the 8200 Series

Lock Functions Available on This Listing

• 8205 — Office or Entry: Outside lever locked/unlocked by key; inside lever always free
• 8225 — Dormitory or Exit: Outside lever locked by key or thumbturn; inside lever always free for egress
• 8237 — Classroom: Outside lever locked/unlocked by key; inside lever always free; no inside control of outside lever
• 8245 — Dormitory or Exit: Variant of dormitory/exit function; refer to Sargent catalog for full function description

Key Features

• Push/Turn Button Design: Prevents damage from door stops and walls; reduces maintenance callbacks
• Warped-Door Latch Operation: Maintains reliable latch retraction even on out-of-square or binding doors
• Interchangeable Core Ready: Lockbody accepts fixed and IC cylinder formats for seamless key-system integration
• Microshield® Antimicrobial Coating: Optional finish treatment for healthcare, education, and high-touch environments
• Field Reversible: Handing changed on-site without special tools — reduces inventory and speeds installation

Typical Applications

• Commercial office buildings and corporate campuses
• K–12 schools and university facilities (classroom and dormitory functions)
• Healthcare institutions and medical office buildings
• Government and municipal buildings
• Multi-family and mixed-use residential properties
• Retail, industrial, and warehouse facilities

Installation Resources

Download the Sargent 7800/8200 Mortise Lock Catalog, Full Line Catalog, and the 7800 & 8200 Series installation template using the PDF links on this page. A keypad mortise lock programming guide is also available for KP8200 keypad variants.