Model #1575537

Optical instrument lens (NSN 6650-00-816-0506)

Description

Glass optical material.

Diameter
Between 2.518 inches and 2.520 inches
Axial Thickness
0.689 inches and 0.157 inches
Compound Lensaxial Thickness
0.846 inches
Compound Lens Edge Thickness
0.590 inches
Equivalent Focal Length
5.404 inches
Back Focal Length
5.225 inches
Front Focal Length
5.018 inches
Refraction Index
1.5170 and 1.6490
Abbe Constant
64.500 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-2.283 inches and 3.710 inches
Element Right Surface Radius
-2.283 inches and -6.036 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
1. Fire control computing sights and devices
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 06/02/2024