Model #8574719

Optical instrument lens (NSN 6650-00-683-9558)

Description

Glass optical material.

Diameter
2.067 inches
Axial Thickness
0.236 inches and 0.158 inches
Compound Lensaxial Thickness
0.394 inches
Compound Lens Edge Thickness
0.3125 inches
Equivalent Focal Length
16.883 inches
Back Focal Length
16.809 inches
Refraction Index
1.5170 and 1.6730
Abbe Constant
64.500 and 32.200
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
10.406 inches
Element Right Surface Radius
7.551 inches
Material
Glass, optical, mil-g-174, class 1, grade c
Material Specification
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data
Telescope, m105c, integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/03/2024