Model #5182961

Optical instrument lens (NSN 6650-00-518-2961)

Description

Glass optical material.

Diameter
1.181 inches
Axial Thickness
0.079 inches and 0.496 inches
Compound Lensaxial Thickness
0.575 inches
Compound Lens Edge Thickness
0.425 inches
Equivalent Focal Length
2.596 inches
Back Focal Length
2.660 inches
Front Focal Length
2.085 inches
Refraction Index
1.6490 and 1.5720
Abbe Constant
33.800 and 57.400
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
59.206 millimeters
Element Right Surface Radius
0.841 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
Telescope, elbow, integrated with fire control equip
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 11/21/2024