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Schlage L9050 Grade 1 Mortise Office and Inner Entry Lock

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Quick Overview

L Series locks are recommended for use in schools, hospitals, and factories, where the finest hardware is required to provide consistent, dependable operation and withstand continuous use and abuse.

  • Extra Heavy-Duty Grade 1
  • ANSI Function: F04
  • ADA Compliant and Fire-Rated
As low as $533.40

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Schlage L9050 Grade 1 Mortise Office and Inner Entry Lock

The Schlage L Series mechanical lock is the industry standard of mortise locks. It has earned its unparalleled reputation over its long history through consistently delivering reliable, durable and flexible performance.

The L Series not only exceeds ANSI/BHMA Security Grade 1 AND Operational Grade 1 standards, it also serves as the foundation for the Schlage L wired electrified, LE wireless electronic and multi-point mortise lock portfolios.


  • Latchbolt retracted by knob/lever from either side unless outside is made inoperative by key outside or by turning inside thumbturn
  • When outside is locked, latchbolt is retracted by key outside or by knob/lever inside
  • Outside knob/lever remains locked until thumbturn is returned to vertical or unlocked by key
  • Auxiliary latch deadlocks latchbolt when door is locked
  • Inside knob/lever is always free for immediate egress


  • Exceeds ANSI/BHMA Grade 1 operational and security standards
  • Expansive list of configurations and options
  • 50 mechanical functions meet the requirements of most applications
  • Universal lock case that supports 10 different functions
  • 14 finishes paired with 33 levers, two knobs, five roses and three escutcheon designs to enhance any building style
  • Levers constructed of solid brass or solid stainless steel for a strong-yet-comfortable feel
  • Supports standard, SFIC and FSIC cylinder formats
  • Multiple key systems available


More Information
ANSI Function


Lock Function

Office or Inner Entry

ANSI Grade

ANSI A156.13, Series 1000, Operational Grade 1 and Security Grade 1


Heavy Duty

Fire Rating

“A” Label 3 Hour Fire Doors, UL10C Positive Pressure Rated

ADA Compliance

Meets ADA requirements – A117.1 Accessibility Code

Keys (for P6 cylinders)

Two nickel silver cut keys per lock


2 3/4" standard

Cylinder 6-Pin solid brass, keyed 6-pin, S123 keyway, keyed different (KD)

1" Throw stainless steel


3⁄4" throw stainless steel latch with anti-friction tongue


ANSI curved lip strike 1-1/4" x 4-7/8" x 13/16" lip to center with dust box standard

Armored Front

1 1/4" x 8" x 7/32" standard

Case Size

4 7⁄16" x 6 1⁄16" x 1"


Steel case and parts are corrosion resistant


Field-reversible handing without opening lock case

Door Thickness

1 3/4" standard


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