M45 Optical Boresight

M45 Optical Boresight W/Equipment: Details

M45 Optical Boresight

NSN: 1240-00-152-3512
P/N: 10549221

General Description

The M45 Boresight is used to detect deflection and elevation errors in the mortar sight unit. It has a body with machined surfaces which is then attached or clamped to the mortar tube. A fixed focus elbow telescope and body assembly is used with a distant aiming point to align the mortar tube and verify that the mortar sight unit is accurate.

Additional Information

Weight: 2.5 lbs
Length: 4.5 in.
Width: 4 in.
Height (w/o strap): 4.75 in
Limits of Operation
Magnification: 3x
Field of view: 12°, 12 minutes

Key Components

The M45 Boresight consists of the elbow telescope, body assembly, pivot shaft, strap shaft, hook, telescope clamp, strap assemblies, clamp assemblies, and M102 carrying case.

P/N NSN
M109 Elbow Telescope 10548042-2 1240-01-197-5069
Body, Boresight 10548287 1240-01-226-9931
Strap Assembly 8579194 5340-00-706-4484
Clamp Assembly 8579191 5340-00-706-8149
Case, Carrying: M102 10549222/
PRF13005488
6650-00-152-2916/
6650-01-521-9877