Model #LD172589GP51

Optical instrument lens (NSN 6650-00-382-1836)

Description

Glass optical material.

Diameter
1.101 inches
Axial Thickness
0.354 inches and 0.118 inches
Compound Lensaxial Thickness
0.472 inches
Compound Lens Edge Thickness
0.333 inches
Equivalent Focal Length
2.144 inches
Back Focal Length
2.131 inches
Front Focal Length
1.860 inches
Refraction Index
1.5880 and 1.6490
Abbe Constant
53.400 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-1.103 inches and 1.274 inches
Element Right Surface Radius
-1.103 inches and -10.370 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
Fire control, telescope, mk91 mod 0
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 05/08/2024