Model #1240009544428

Optical instrument lens (NSN 6650-00-954-4428)

Description

Glass optical material.

Diameter
0.786 inches
Axial Thickness
0.177 inches and 0.138 inches
Compound Lensaxial Thickness
0.315 inches
Compound Lens Edge Thickness
0.298 inches
Equivalent Focal Length
10.035 inches
Back Focal Length
9.897 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
6.373 inches
Element Right Surface Radius
4.453 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
SCY13

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Updated: 04/27/2024