Model #LD172589PC66

Optical instrument lens (NSN 6650-00-157-9403)

Description

grade c jan-g-174 optical glass material.

Diameter
2.204 inches
Axial Thickness
0.157 inches and 0.866 inches and 0.866 inches
Compound Lensaxial Thickness
1.023 inches
Compound Lens Edge Thickness
0.590 inches
Equivalent Focal Length
3.952 inches
Back Focal Length
4.089 inches
Front Focal Length
3.170 inches
Refraction Index
1.6210 and 1.5170
Abbe Constant
36.200 and 64.500
Compound Lens Style
Doublet
Individual Lens Style
Double convex and plano-concave
Element Left Surface Radius
-5.139 inches and 6.693 inches
Element Right Surface Radius
-1.704 inches and 1.704 inches
Material
Glass, optical, jan-g-174, grade c
Fsc Application Data
Gunsight mk 15 mod 2
Description
Lens,optical Instrument
Cage Code
53711

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Updated: 05/04/2024