Model #MIL1802

Optical instrument lens (NSN 6650-00-210-4388)

Description

grade b class 1 mil-g-174 optical glass material.

Diameter
Between 2.046 inches and 2.047 inches
Axial Thickness
0.512 inches and 0.118 inches
Compound Lensaxial Thickness
0.630 inches
Compound Lens Edge Thickness
0.263 inches
Equivalent Focal Length
4.034 inches
Back Focal Length
3.920 inches
Front Focal Length
3.752 inches
Refraction Index
1.6111 and 1.7200
Abbe Constant
58.800 and 29.300
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-2.047 inches and 3.226 inches
Element Right Surface Radius
-2.047 inches and -6.169 inches
Material
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data
Optical sighting and ranging equipment
Description
Lens,optical Instrument
Cage Code
06175

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Updated: 12/04/2024