Model #5204662

Optical instrument lens (NSN 6650-00-520-4662)

Description

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

Diameter
2.047 inches
Axial Thickness
0.358 inches and 0.260 inches
Compound Lensaxial Thickness
0.619 inches
Compound Lens Edge Thickness
0.438 inches
Equivalent Focal Length
13.004 inches
Back Focal Length
12.597 inches
Front Focal Length
12.159 inches
Refraction Index
1.5170 and 1.6170
Abbe Constant
64.500 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
6.051 inches and -6.086 inches
Element Right Surface Radius
-6.173 inches and -68.563 inches
Material
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data
Telescope, model m49
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/07/2024