Door User Manual
MASTER LOCK PRODUCT SPECIFICATIONS  FEBRUARY 2011  
Master Lock Company, 137 West Forest Hill Avenue, P.O. Box 100367, Oak Creek, Wisconsin 53154 
TELEPHONE:  800-308-9244;  FAX:  800-308-9245;  WEBSITE:  www.masterlock.com 
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BUILT-IN COMBINATION LOCKS  10 51 61 - 10 
    C.  ADA compliant lock:   
      1.  Lock Description:  Provide 3 digit combination and 5 preset combinations 
changes with 5 pin tumbler lock cylinder which is master keyed to a master 
key and student key. 
      2.  Model:  [1651MKADA] [1656MKADA][1651MKMDADA] 
[1656MKMDADA] 
    D.  Dial:   
      [1.  Durable plastic dial with textured lip for non-slip, one-handed, grip-and-pull 
operation. 
        a.  Color:  Black] 
      [2.  Metal dial with textured lip for non-slip, one-handed, grip-and-pull operation. 
        a.  Color:  [Black] [Red] [Blue] [Green] [Purple]] 
      [3.  Provide dial with brass escutcheon plate.] 
*****Locker doors which are 11/16 to 3/4 inch thick require an extension set.  Include the 
following paragraph if extension is required.  ***** 
    E.  Extension set:  Provide for locker doors 11/16 to 3/4 inch thick. 
2.5  COMBINATION LOCKS FOR SINGLE POINT HORIZONTAL LATCH BOX 
LOCKERS  
*****These eight  models of built-in combination locks are provided for multi-tier and 
box lockers with pull or friction latch handles. 
Standard Locks:  
  Model 1654:  Right-handed with plastic dial.  
  Model 1655:  Left-handed with plastic dial.  
  Model 1654MD:  Right-handed with metal dial (MD).  
  Model 1655MD:  Left-handed with metal dial. 
ADA Compliant  Locks:   
ADA Compliant locks offer Three-Way-To-Open Operation 










