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S SIGHT：M53
Model：M53

Federal stock No.：1240-856-9452

General：
SIGHTUNIT：M53（XM53E2）consists of TELESCOPE, ELBOW：M109 and MOUNT, TELESCOPE：M128E2 and is intended to replace SIGHTUNIT：M34A2 for mortars and rocket launchers and also the developmental sightunit for BATTLE GROUP ATOMIC WEAPON SYSTEM：M28 and M29.
The telescope is supported in the rotating head of the telescope mount which dovetails into a slot in a bracket on the weapon. A locking device, operated by a lever on the mount, secures the sightunit in the dovetailed slot. Worm mechanisms, scales, knots, and radioactive leveling vials for adjusting the sightunit in elevation and azimuth are on the mount.
The sightunit is used with LAUNCHER, ROCKET：multiple, 115-mm, M91.
LIGHT, INSTRUMENT：XM53 is used with the sightunit.

differences among models


data plate location

Classification：Standard A（OTCM 38113）

CHARACTERISTICS
Length-----6 in.
Width-----5 in.
Height-----10 in.
Weight-----51/4 lb
Magnification-----4 power
Field of view-----10 deg
Diameter of exit pupil-----0.150 in.
Diameter of entrance pupil-----0.600 in.
Equivalent focal length of objective-----3.200 in.
Equivalent focal length of eyepiece-----0.800 in.
Limits of Operation：
Elevation-----1,600 mils（90°）
Depression-----200 mils（11.25°）
Azimuth-----6,400 mils（360°）


 



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