Model #SCC635112

Optical instrument lens (NSN 6650-00-167-7970)

Description

517-645 type bsc-2 mil-g-174 optical glass material.

Diameter
2.650 inches
Axial Thickness
0.119 inches
Equivalent Focal Length
19.903 inches
Back Focal Length
16.951 inches
Front Focal Length
16.934 inches
Refraction Index
1.5170
Abbe Constant
64.500
Single Lens Style
Double concave
Individual Lens Style
Double concave
Element Left Surface Radius
-14.479 inches
Element Right Surface Radius
22.106 inches
Material
Glass, optical, mil-g-174, type bsc-2, 517-645
Fsc Application Data
Detecting set, infrared, noncommunication
Description
Lens,optical Instrument
Cage Code
80063

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Updated: 11/23/2024