Model #7653189

Optical instrument lens (NSN 6650-00-765-3189)

Description

Glass optical material.

Diameter
1.186 inches
Axial Thickness
0.405 inches and 0.088 inches
Compound Lensaxial Thickness
0.493 inches
Compound Lens Edge Thickness
0.250 inches
Equivalent Focal Length
1.969 inches
Back Focal Length
1.668 inches
Refraction Index
1.5725 and 1.6490
Abbe Constant
57.400 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
1.1470 inches
Element Right Surface Radius
1.4810 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
Periscope, integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/28/2024