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MIL-DTL-48559 Mount, Telescope And Quadrant - M172A1This specification 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.

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MIL-DTL-48559B
3.9.3 Interchangeability of mounting surface for M138A1 telescope. Any M138A1
telescope that is within specification shall be able to be installed on the M172A1 mount.
3.10 Workmanship. Workmanship of the M172A1 mount shall be in accordance
with the requirements of MIL-F-13926.
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For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business

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