Model #7580292

Optical instrument lens (NSN 6650-00-758-0292)

Description

grade b class 1 mil-g-174 optical glass material.

Diameter
1.749 inches
Axial Thickness
0.414 inches and 0.178 inches
Compound Lensaxial Thickness
0.592 inches
Compound Lens Edge Thickness
0.474 inches
Equivalent Focal Length
7.500 inches
Back Focal Length
7.214 inches
Front Focal Length
6.622 inches
Refraction Index
1.5230 and 1.6490
Abbe Constant
58.600 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-3.337 inches and 4.723 inches
Element Right Surface Radius
-10.542 inches and -3.337 inches
Material
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data
Periscope integrated with fire control equip
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/19/2024