Specification Sheet
MS1850S-050
Series MS
®
Deadlock
Specifications
CYLINDER BACKSET
• 7/8", 31/32", 1-1/8", or 1-1/2" only.
CASE
• Steel with corrosion-resistant plating, measures 1" x 6" x
depth. Depth varies by backset (see table on back of page).
BOLT
• 5/8" x 1-3/8" with 13/16" throw. Eight-ply laminated stainless
steel. Center ply has alumina-ceramic core to defeat any
hacksaw attack, including rod-type “super” hacksaws, while
hook shape repels pry bar attempts to “spread” the door
from its jamb or lift it off its track.
FACEPLATE
• Measures 1" x 6-7/8".
STRIKE
• See back of page for dimensions of strike slot which can be
cut in metal jamb. Trim plate, box strike, and armored strike
are available separately.
CYLINDER CAM
• MS1850S-050 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
• Cylinder backset and faceplate finish and shape (radiused, flat
or bevel cross-section to match door nose) must be specified.
“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
SCH1850S-050. Same faceplate and backset options as
Series MS1850S-050. Operation from inside, with standard
Adams Rite 4066 Trim or with 4550 Deadlock Lever. For
wood or hollow metal, see MS1850SN.
STANDARD PACKAGE
• Individually boxed with machine screws for mounting.
Cylinders and/or thumbturns available separately. Shipping
weight: 1-1/2 lbs.
MS1850S-050 SERIES MS
®
DEADLOCK
ALUMINUM
GRADE 1
E8281/E8291
The MS1850S-050 Deadlock utilizes a laminated stainless
steel hookbolt, activated by a pivot mechanism to provide
maximum security for a sliding narrow stile door.
Function
The MS1850S-050 Deadlock answers the security need of sliding glass doors in
commercial, industrial, and institutional buildings. The mechanism is identical to
the widely used Maximum Security swinging door lock, except that the massive
laminated bolt is provided in a hook shape to resist the parting motion of sliding
door and jamb. The over-center MS locking action assures that forced entry
attempts to pry the door in any direction, up, down, or sideways will be defeated.
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 or thumbturn from either
or both sides. Cylinder must have MS
®
dimensioned cam.
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"
21.6mm ± .127mm
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-11