Model #7660500

Optical instrument lens (NSN 6650-00-851-7613)

Description

grade c mil-g-174 optical glass material.

Diameter
0.760 inches
End Application
Telescope, panoramic, m117
Axial Thickness
0.179 inches and 0.099 inches
Compound Lensaxial Thickness
0.278 inches
Compound Lens Edge Thickness
0.228 inches
Equivalent Focal Length
6.135 inches
Back Focal Length
6.008 inches
Front Focal Length
5.730 inches
Refraction Index
1.5725 and 1.6890
Abbe Constant
57.400 and 68.900
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
4.235 inches
Element Right Surface Radius
2.487 inches
Material
Glass, optical, mil-g-174, grade c
Fsc Application Data
Telescope, panoramic, t177, integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 07/01/2024