Model #8626471

Optical instrument lens (NSN 6650-00-964-9274)

type 523-586 grade c class 1 mil-g-174 optical type 617-366 and glass grade c class 1 mil-g-174 optical glass material.

Diameter

Between 1.697 inches and 1.700 inches

Axial Thickness

0.255 inches and 0.121 inches

Compound Lensaxial Thickness

Between 0.356 inches and 0.396 inches

Equivalent Focal Length

12.920 inches

Back Focal Length

12.642 inches

Compound Lens Style

Doublet

Individual Lens Style

Double convex and plano-concave

Element Left Surface Radius

5.562 inches and -5.562 inches

Element Right Surface Radius

-5.562 inches and 0.000 inches

Material

Glass, optical, mil-g-174, class 1, grade c, type 617-366 and glass, optical, mil-g-174, class 1, grade c, type 523-586

Fsc Application Data

Telescope

Description

Lens,optical Instrument

Cage Code

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