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Optical Instrument Lens

Model / MPN: 5204255 | NSN: 6650-00-520-4255
ITAR Registered seal

An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see window, optical instrument. Excludes reticle, optical instrument.

Product Details
NATO Stock Number
6650-00-520-4255
Sold in multiples of
DEMIL
NO
Diameter
2.048 inches
Axial Thickness
0.394 inches and 0.177 inches
Compound Lensaxial Thickness
0.571 inches
Compound Lens Edge Thickness
0.406 inches
Equivalent Focal Length
7.598 inches
Back Focal Length
7.348 inches
Refraction Index
1.5110 and 1.6170
Abbe Constant
63.500 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
5.122 inches
Element Right Surface Radius
2.785 inches
Material
Glass, optical, mil-g-174, class 1, grade c
Material
Glass optical
Material Specification
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data
Binocular, fire control
52042 Series Parts

Pricing and Availability

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5204255 Cross Reference