Model #LD172600PC23

Optical instrument lens (NSN 6650-00-382-1958)

Description

grade c jan-g-174 optical glass material.

Diameter
2.598 inches
Axial Thickness
0.394 inches and 0.394 inches
Compound Lensaxial Thickness
0.787 inches
Compound Lens Edge Thickness
0.746 inches
Equivalent Focal Length
18.905 inches
Back Focal Length
18.424 inches
Front Focal Length
18.890 inches
Refraction Index
1.5724 and 1.6168
Abbe Constant
57.400 and 36.600
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, periscope mk30 mod 2
Description
Lens,optical Instrument
Cage Code
53711

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Updated: 11/26/2024