Specification Sheet
MS1850SN MS
®
Series Deadlock
(ANSI Size)
Operation
360° turn of key or thumbturn throws or retracts the
counterbalanced bolt. Key can be removed only when bolt is
in a positively locked or unlocked position. Lock accepts any
standard 1-5/32" diameter mortise cylinder from either or both
sides. Cylinder must have MS
®
dimensioned cam.
Specifications
CYLINDER BACKSET
• 1-1/2" only.
CASE
• Steel with corrosion-resistant plating, measures 1" x 6" x 2-1/4".
BOLT
• 5/8" x 1-3/8" x 2-7/8" with 1-3/8" throw. Eight-ply laminated
stainless steel. Center ply has alumina-ceramic core to defeat
any hacksaw attack, including rod-type “super” hacksaws.
STRIKE
• Available in lipped, ANSI-spec version in steel with chrome
finish. See back of page for dimensions of strike slot which can
be cut in metal jamb. Other strikes are available separately.
CYLINDER CAM
• MS1850SN Deadlocks are operable by any standard 1-5/32"
diameter mortise cylinder with MS
®
cam dimensioned as
shown. Cylinders with MS
®
cams can be readily obtained
from most cylinder manufacturers. See CYLINDERS section
for cylinder make, thumbturn and trim ring information.
OPTIONS
• Second and third point locking bolts are available for pairs of
steel doors. Shorter “hookbolt” version also available. All use
any make standard mortise cylinder and thus can be keyed
into systems with other types of doors. “SCHOOLHOUSE”
version, also available, is modified so that operation from
inside is “unlock only”. This lock is handed and must be
specified LH or RH. Specify Series SCH1850SN. Same
faceplate and backset options as Series MS1850SN.
Operation from inside, with standard Adams Rite 4066 Turn.
STANDARD PACKAGE
• Individually boxed with machine screws for mounting.
Cylinders and/or thumbturns available separately.
Shipping weight: 1-1/2 lbs.
MS1850SN MS
®
SERIES DEADLOCK (ANSI SIZE)
HOLLOW
METAL
WOOD
GRADE 1
E8211
The ANSI size MS1850SN Deadlock utilizes a laminated
stainless steel bolt, activated by a pivot mechanism to
provide maximum security for hollow metal or wood doors.
Function
For hollow metal or wood doors prepared for hardware according to the
specifications of the American National Standards Institute (ANSI), the
MS1850SN Deadlock provides maximum security and ease of installation.
Its standard 1-1/2" backset dimension provides adequate clearance for the
deep stop on the door jamb of hollow metal entrances.
B
LOCK CASE
CAM
TR
A
DOOR CENTERLINE
*TOLERANCE: ± 1/16
DOOR STILE
TRIM RING
CYLINDER
TR* = A + .125
– B
TR* = A + .132
– B
FOR MS
®
LOCKS: FOR 4500 SERIES LATCHES:
“Dim A”
R
R
1830
2190
2290
MS1837
MS1850S
MS1850SN
MS1861
MS1950
1875
MS
+
1890
4300
4510
4530
4900
4781
4920AN
8300
8400
8650
DEADLOCK
DEADLATCH
SERIES
SERIES
EXIT
DEVICES
1870
1870HM
1877
3080
3090
FLUSHBOLTS
TRIM
THIS CAM AVAILABLE FROM:
ADAMS RITE
ARROW
ASSA
BEST
CORBIN RUSSWIN
DORMA
FALCON
KABA-ILCO
MEDECO
SARGENT
SCHLAGE
WEISER
YALE
.120"
3.0mm
.182"
4.6mm
.334"
8.5mm
.620"
15.7mm
R
.721"
18.3mm
.950"
24.1mm
.334"
8.5mm
.800" ± .005"
20.3mm ± .127mm
.850" ± .005"
21.6
mm
± .127
mm
THIS CAM AVAILABLE
FROM ABOVE CYLINDER
MANUFACTURERS
ON SPECIAL ORDER
(OR MAKE FROM
STANDARD CAM)
THIS CAM AVAILABLE
FROM ALL CYLINDER
MANUFACTURERS
(STANDARD CAM)
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:
DIMENSIONS OF CAM TO OPERATE:
DIMENSIONS OF CAM
TO OPERATE:
4070 SERIES DEADBOLT
DIMENSIONS OF CAM
TO OPERATE:
2331 DEADBOLT
CYLINDER TRIM RING FOR NARROW STILES
“
TR
” is trim ring length.
“
A
” is cylinder height (less shoulder but including cam).
“
B
” is one-half of door thickness.
800.872.3267 • Fax 800.232.7329
10027 S. 51st Street, Ste 102
Phoenix, Arizona 85044
www.adamsrite.com
ARM-014-9/14
DEADL OCKS
DL-13