Model #8270615

Optical instrument lens (NSN 6650-00-692-1535)

Description

Glass optical material.

Width
0.694 inches
Diameter
1.890 inches
Axial Thickness
0.740 inches and 0.158 inches
Compound Lensaxial Thickness
0.898 inches
Compound Lens Edge Thickness
0.557 inches
Equivalent Focal Length
3.141 inches
Back Focal Length
2.879 inches
Refraction Index
1.5170 and 1.6210
Abbe Constant
64.500 and 36.200
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
3.266 inches
Element Right Surface Radius
1.010 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
Wight periscope, integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 11/23/2024