MIL-S-48573 Sightunit, M64This specification covers one type of instrument known as Sight-unit: XM64E2 used with the Lightweight Company Mortar, 60MM XM224 \(See 6.1. Throughout this specification this instrument is referenced as "sightunit." This sightunit is composed of Telescope, Elbow: 11733780 and Mount, Telescope: 11741796. This sightunit has radioactively illum-inated scales, level vials and reticle.

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MIL-S-48573(AR)

AMENDMENT 1

5 November 1984

MILITARY SPECIFICATION

M64

SIGHTUNIT:

This Amendment forms a part of Military Specification

MIL-S-48573(MU) dated 15 April 1977, and is approved

for use by the US Army Armament Munitions and Chemical

Command and is available for use by all Departments anti

Agencies of the Department of Defense.

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1.1, last sentence: Change "scales and level vials" to "scales,

indices, and level vials."

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Change "(see 4 and 6)" to ", see Sections 4.2 and 6.2."

3.2:

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" 3.6:

Delete in its entirety.

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4.4.2:

Change "(see 4.3.3)" to "(see 4.3.2)".

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4.6.1:

Delete second sentence and substitute new second sentence:

"Install the telescope in the clamping mechanism of the mount

and lock it in place by applying a force of 15 � 1 inch pounds to

the locking lever and a force of 10 � 1 inch pounds to the wing

nut."

Preparing Activity:

Custodian:

Army-AR

( Project 1240 -A834)

FSC 1240

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