Qualified Hardware logo Paypal
1-866-749-7661 Contractor Hotline: 1-866-622-0224
1-866-749-7661 Contractor Hotline: 1-866-622-0224

Corbin Russwin ML2055-CSR-26D-L4

Special Order Complete Classroom Mortise Lock

SKU: ML2055-CSR-26D-L4

Price: $524.00

Special Order non-stock item Requires 4 week lead time

Choose Options Below

The Corbin Russwin ML2055-CSR classroom functon is a Grade 1 mortise lock designed to meet the rigors of high traffic commercial, institutional, industrial and government applications See more product information below

Because this is not a stock item we must order it specifically for you and we will be unable to accept a return unless the item is defective as determined by the factory it was bought from.

  • Special Order
  • FREE Shipping

Have a question about this product?

Price: $524.00

Choose Options

Start selecting options

Use the menu on the right to select available options.
After all options have been chosen, you can add to cart.

Choose Handing:

Need Help Deciding?

Help Me Decide

  • Left Hand: Hinges on left, opens inward. For handed locks, specify LH
  • Left Hand Reverse: Hinges on left, opens outward. For handed locks, specify LHR.
  • Right Hand: Hinges on right, opens inward. For handed locks, specify RH.
  • Right Hand Reverse: Hinges on right, opens outward. For handed locks, specify RHR.


Special order item with 4 week lead time

  • Complete mortise lock with CS lever and R escutcheon trim with satin chrome finish.
  • L4 keyway
  • Classroom function
  • For 1-3/4 " thick doors
  • 2-3/4 backset.
  • Handing is Field reversible
  • Strike - ANSI straight lip 4-7/8" x 1-1/4" x 1-1/8"

Available Options: Choose Options Above

  • Handing: info icon

    • Left Hand Reverse (LHR)
    • Right Hand Reverse (RHR)
    • Left Hand (LH)
    • Right Hand (RH)

Tech Specs


  • Classroom function-Latchbolt by lever either side, unless outside lever is locked by outside.
  • Latchbolt by key when outside grip unlocked.
  • Outside lever remains locked unless unlocked by key
  • Auxiliary latch deadlocks latchbolt.
  • Inside grip always free.



Scroll for More Product Information