Model #8626214

Optical instrument lens (NSN 6650-00-073-8842)

Special Features
Front and back surfaces coated with magnesium fluoride
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 1.097 inches and 1.103 inches
Axial Thickness
Between 0.400 inches and 0.420 inches and 0.092 inches and 0.112 inches
Compound Lensaxial Thickness
Between 0.492 inches and 0.532 inches
Equivalent Focal Length
2.901 inches
Back Focal Length
2.518 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 plano-concave
Element Left Surface Radius
1.262 inches
Element Right Surface Radius
1.806 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