Model #278694-8

Optical instrument lens (NSN 6650-00-155-1356)

Description

grade c jan-g-174 optical glass material.

Diameter
0.315 inches
Axial Thickness
0.118 inches and 0.039 inches
Compound Lensaxial Thickness
0.157 inches
Compound Lens Edge Thickness
0.134 inches
Equivalent Focal Length
1.110 inches
Back Focal Length
1.033 inches
Front Focal Length
1.065 inches
Refraction Index
1.5740 and 1.6200
Abbe Constant
57.700 and 36.200
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Material
Glass, optical, jan-g-174, grade c
Fsc Application Data
Fire control, range finder, mk 57
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 11/23/2024