Model #118923PC2XPC3

Optical instrument lens (NSN 6650-00-382-1898)

Description

Glass optical material.

Diameter
1.417 inches
Axial Thickness
0.276 inches and 0.118 inches
Compound Lensaxial Thickness
0.394 inches
Compound Lens Edge Thickness
0.324 inches
Equivalent Focal Length
7.147 inches
Back Focal Length
6.931 inches
Front Focal Length
7.113 inches
Refraction Index
1.5720 and 1.6190
Abbe Constant
57.400 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-2.323 inches and 4.507 inches
Element Right Surface Radius
-2.323 inches and -18.915 inches
Material
Glass, optical, mil-g-174, class 1, grade c
Material Specification
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data
Fire control, telescope, mk 74
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 05/19/2024