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About This Item

 

Full Description

MIL-DTL-48559B covers the Mount, Telescope and Quadrant: M172A1 which supports the Fire Control Quadrant: M18A1 for use on the M777 and M198 series of howitzers and gives elevation compensation to correct for cant when the mount is leveled by a cross level movement. The mount also supports and aligns the mounting bracket for the Elbow Telescope: M138A1.
 

Amendments, rulings, supplements, and errata

  1. MIL MIL-DTL-48559B Notice 1 - Validation 1


    Mount, Telescope and Quadrant - M172A1