Model #1040149

Optical instrument lens (NSN 6650-00-382-1739)

Description

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

Diameter
Between 2.16338 inches and 2.16535 inches
Axial Thickness
0.47244 inches
Equivalent Focal Length
4.043 inches
Back Focal Length
3.850 inches
Front Focal Length
3.917 inches
Refraction Index
1.5300
Abbe Constant
51.800
Single Lens Style
Double convex
Individual Lens Style
Double convex
Element Left Surface Radius
3.471 inches
Element Right Surface Radius
-5.331 inches
Material
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data
1. Optical sighting and ranging equipment
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 11/21/2024