Model #5204255

Optical instrument lens (NSN 6650-00-520-4255)

Description

Glass optical material.

Diameter
2.048 inches
Axial Thickness
0.394 inches and 0.177 inches
Compound Lensaxial Thickness
0.571 inches
Compound Lens Edge Thickness
0.406 inches
Equivalent Focal Length
7.598 inches
Back Focal Length
7.348 inches
Refraction Index
1.5110 and 1.6170
Abbe Constant
63.500 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
5.122 inches
Element Right Surface Radius
2.785 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
Binocular, fire control
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 11/21/2024