INCH-POUND
MIL-DTL-48559B
16 August 2012
SUPERSEDING
MIL-M-48559A(AR)
30 March 1990
DETAIL SPECIFICATION
MOUNT, TELESCOPE AND QUADRANT - M172A1
Reactivated after 16 August 2012 and may be used for new and existing designs and
acquisitions
This specification is approved for use by all Departments and Agencies of the Department
of Defense.
1. SCOPE
1.1 Scope. This 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.
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3 and 4
of this specification. This section does not include documents in other sections of this
specification or recommended for additional information or as examples. While every
effort has been made to ensure the completeness of this list, document users are cautioned
that they must meet all requirements of documents cited in sections 3 and 4 of this
specification, whether or not documents are listed in this section.
Comments, suggestions, or questions on this document should be addressed to:
Commander, US Army ARDEC, ATTN: RDAR-QES-E, Picatinny, New Jersey
07806-5000 or emailed to picaardecstdznbranch@conus.army.mil. Since contact
information can change, you may want to verify the currency of this address information
using the ASSIST online database at https://assist.dla.mil.
AMSC N/A
FSC 1240
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
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