4036 Mortise Cylinder & 4066 Thumbturn

Description: The 4036 Mortise Cylinder provides five-pin security with most Adams Rite locks or latches. The 4066 Thumbturn operates locks or latches without a key.

4036 Mortise Cylinder Function: A standard 1” long, 1-5/32” diameter cylinder with five-pin tumbler security. Designed to operate any Adams Rite lock or latch requiring a mortise cylinder. Close-tolerance manufacture and inspection achieve setscrew grooves and cam that are true on their respective centerlines. This ensures proper mating and operation with the lock or latch mechanism.

4036 Specifications:

4036 Mortise Cylinder Shell: Aluminum scalp with US28 Clear Anodized (628) or 313 (Dark Bronze Anodized) or 335 (Black Anodized). Plug is US26 Chrome (625).

4036 Mortise Cylinder Keying: Available in keyed-alike pairs (KA2), keyed-different (KD), and keyed-alike sets of 50 (KA50). All cylinders furnished with two keys per cylinder.

4036 Mortise Cylinder Trim Ring: Furnished. 1/4” thick, suitable for 1-3/4” thick doors. Available by special order for other door thicknesses.


4066 Thumbturn Function: To operate lock or latch without key. Interchanges with standard 1-5/32” diameter mortise cylinder. Cams are available to suit the particular Adams Rite lock or latch (see catalog page for cam specs). 

4066 Specifications:

4066 Thumbturn Shell: Choice of three finishes: 130 to match Clear Anodized, 313 (Dark Bronze Anodized) or 335 (Black Anodized).

4066 Thumbturn Trim Ring: Furnished. 1/4” thick, suitable for 1-3/4” thick doors. Available by special order for other door thicknesses.

Specifications: Individually packed with trim ring. 4036 also furnished with keys.

Cylinders “By Others”: Adams Rite deadlocks and latches are designed to accept standard mortise cylinders of all popular makes. This means that the entrance can be keyed to match the system used throughout the building on other types of doors. Care must be taken, however, to specify the proper cam for each type of lock, as these are not generally interchangeable. The cam shapes shown below are available from the listed cylinder manufacturers and will be supplied by them with the cylinder when specified or available separately. Because of variations in the attachment of cams to cylinders and other construction differences, it is advisable NOT to attempt using one manufacturer’s cylinder with another’s cam.

Dimensions of Cam to Operate the Following Adams Rite Products: download document >>

Deadlocks Deadlatches Flushbolts Exit Devices Trim
1830, MS1837, MS1850S(-050), MS1850SN(-050), MS1861, 1875, MS+1890, MS1950(-050), 2190, 2290 4300, 4510, 45304781 w/8650, 4900, 4920AN 1870, 1870HM, 1877 8300, 8400, 8600 w/8650 3080, 3090

Dimensions of Cam to Operate:
4070 Deadlock: This cam available from cylinder manufacturers by special order. download document >>

Dimensions of Cam to Operate:
2331 Deadlock: This cam available from all cylinder manufacturers (standard cam). download document >>

Cylinder Trim Ring for Narrow Stiles: Narrow stile doors require a trim ring to fill the gap remaining between the cylinder shoulder and stile when a standard mortise cylinder is used. If the security of the hardened steel Adams Rite MS4043 Cylinder Guard is not required, this ring may be simply a length of 1.171 I.D. tubing. Its length varies depending on door thickness or cylinder make and number of pins. The specific length required can be quickly determined by the following formula:
For MS Deadlocks: TR*=A + 0.125 – B
For 4500 Series Deadlatches: TR* = A + 0.0312 – B
For 2190: TR* = A – B
*Tolerance +/- 0.060
 ‘TR’ is the trim ring length 
‘A’ is the cylinder height (less shoulder but including cam)
‘B’ is one-half of door thickness

4036/4066 Options:
Dash number specified type of cam:
-01 for MS lock, 4900 Deadlatches, etc.
-02 for 4070 Deadlock
-03 for 2331 Deadlock