Model #LD172589GP117

Optical instrument lens (NSN 6650-00-382-1889)

Description

Glass optical material.

Diameter
0.847 inches
Axial Thickness
0.079 inches and 0.193 inches
Compound Lensaxial Thickness
0.272 inches
Compound Lens Edge Thickness
0.221 inches
Equivalent Focal Length
7.205 inches
Back Focal Length
5.776 inches
Front Focal Length
5.217 inches
Refraction Index
1.7200 and 1.5740
Abbe Constant
29.300 and 57.700
Compound Lens Style
Doublet
Individual Lens Style
Double convex and double concave
Element Left Surface Radius
-1.248 inches and 3.937 inches
Element Right Surface Radius
-1.248 inches and -1.248 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, mk 104 mod 0
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 05/08/2024