Model #1240006921532

Optical instrument lens (NSN 6650-00-692-1532)

Description

Glass optical material.

Diameter
0.984 inches
Axial Thickness
0.121 inches and 0.210 inches
Compound Lensaxial Thickness
0.331 inches
Compound Lens Edge Thickness
0.306 inches
Equivalent Focal Length
4.739 inches
Front Focal Length
4.628 inches
Refraction Index
Between 1.6110 and 1.6490
Abbe Constant
33.800 and 58.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex
Element Left Surface Radius
5.3640 inches
Element Right Surface Radius
1.0420 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
Sight periscope m28, integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
SCY13

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Updated: 05/18/2024