Model #5316358

Optical instrument lens (NSN 6650-00-531-6358)

Description

type 517-645 grade c class 1 mil-g-174 optical glass material.

Diameter
Between 1.424 inches and 1.427 inches
Axial Thickness
Between 0.316 inches and 0.331 inches
Compound Lensaxial Thickness
0.331 inches
Compound Lens Edge Thickness
0.159 inches
Equivalent Focal Length
2.958 inches
Back Focal Length
2.847 inches
Refraction Index
1.5170
Abbe Constant
64.500
Single Lens Style
Double convex
Individual Lens Style
Double concave
Element Left Surface Radius
3.002 inches
Element Right Surface Radius
3.002 inches
Material
Glass, optical, mil-g-174, class 1, grade c, type 517-645
Fsc Application Data
Telescope bc m65
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/28/2024