Model #10514276

Optical instrument lens (NSN 6650-00-116-3432)

Special Features
Front and back surfaces coated with magnesium fluoride
Description

type 541-599 grade c class 1 mil-g-174 optical type 649-338 and glass grade c class 1 mil-g-174 optical glass material.

Diameter
Between 1.236 inches and 1.240 inches
Axial Thickness
Between 0.101 inches and 0.113 inches and 0.494 inches and 0.506 inches
Compound Lensaxial Thickness
Between 0.595 inches and 0.619 inches
Equivalent Focal Length
2.079 inches
Back Focal Length
1.934 inches
Refraction Index
1.6490 and 1.5410
Abbe Constant
33.800 and 59.900
Compound Lens Style
Doublet
Individual Lens Style
Meniscus diverging and double convex
Element Left Surface Radius
2.270 inches
Element Right Surface Radius
0.828 inches
Material
Glass, optical, mil-g-174, class 1, grade c, type 649-338 and glass, optical, mil-g-174, class 1, grade c, type 541-599
Fsc Application Data
Periscope
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 12/11/2024