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Optical Instrument Lens

Model / MPN: 248578-13 | NSN: 6650-00-450-1699
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
6650-00-450-1699
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
1.772 inches
Axial Thickness
0.409 inches
Equivalent Focal Length
6.109 inches
Back Focal Length
5.330 inches
Front Focal Length
4.453 inches
Refraction Index
1.5730
Abbe Constant
57.500
Single Lens Style
Double convex
Individual Lens Style
Double convex
Material
Glass, optical, mil-g-174, grade b, type 573-575
Material
Glass, optical, mil-g-174, grade b, type 573-575
248578 Series Parts

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248578-13 Cross Reference