8619884

Diopter scale

8619884 Description

1.812 inches inside diameter, 0.488 inches overall height, 5 scale division quantity, 2.270 inches overall outside diameter, 1 setscrew mounting configuration.

Properties of 8619884

Inside Diameter:
1.812 inches
Overall Height:
0.488 inches
Scale Division Quantity:
5
Overall Outside Diameter:
2.270 inches
Inscription Color:
White
Mounting Configuration:
1 setscrew
Scale Unit Of Measure Inscription:
2, 1, minus sign/in symbol form/, 0, plus sign/in symbol form/, 1, 2
Material:
Aluminum alloy, ww-t-785, type 1, t3-canceled
Material:
Aluminum alloy 2024
Material Specification:
Ww-t-785, type 1, t3-canceled federal specification single material response
Surface Treatment:
Anodize
Surface Treatment:
Anodized black
Fsc Application Data:
Periscope, integrated with fire control equipment
NSN:
1240-00-088-6757
Description:
Scale,diopter
Cage Code:
19200

Definition Diopter Scale

A graduated scale, usually cylindrical in shape, attached to, or forming a part of, the focusing nut or knob of the eyepiece of an optical instrument. It is read in conjunction with a line or dart indicator to measure the change in refracting power of the eyepiece, in diopters, and introduces correction to compensate for the eyesight variation of the observer. It may have a knurled periphery and/or teeth on the inside diameter.

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Last modified 04/28/2024