Model #944640

Optical instrument lens (NSN 6650-00-382-1715)

Description

Glass optical material.

Diameter
1.732 inches
Axial Thickness
0.437 inches and 0.118 inches
Compound Lensaxial Thickness
0.555 inches
Compound Lens Edge Thickness
0.334 inches
Equivalent Focal Length
3.302 inches
Back Focal Length
3.073 inches
Front Focal Length
3.180 inches
Refraction Index
1.6110 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
-1.297 inches and 2.674 inches
Element Right Surface Radius
-1.297 inches and -4.898 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
1. Fire control, telescope, mk97 mod 1
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 05/04/2024