Model #8626210

Optical instrument lens (NSN 6650-00-073-8841)

Description

type 649-338 grade c class 1 mil-g-174 optical type 517-645 and glass grade c class 1 mil-g-174 optical glass material.

Diameter
Between 1.237 inches and 1.243 inches
Axial Thickness
Between 0.349 inches and 0.369 inches and 0.092 inches and 0.112 inches
Compound Lensaxial Thickness
Between 0.441 inches and 0.481 inches
Equivalent Focal Length
5.569 inches
Back Focal Length
5.312 inches
Refraction Index
1.5170 and 1.6490
Abbe Constant
64.500 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
3.127 inches
Element Right Surface Radius
2.410 inches
Material
Glass, optical, mil-g-174, class 1, grade c, type 517-645 and glass, optical, mil-g-174, class 1, grade c, type 649-338
Fsc Application Data
Telescope panoramic m113
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 11/21/2024