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Worldwide distributor of NSN parts and consumables located in the USA.

Optical Instrument Lens

Model / MPN: 944640 | NSN: 6650-00-382-1715
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
6650-00-382-1715
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
1.732 inches
Axial Thickness
0.437 inches and 0.118 inches
Compound Lensaxial Thickness
0.555 inches
Compound Lens Edge Thickness
0.334 inches
Equivalent Focal Length
3.302 inches
Back Focal Length
3.073 inches
Front Focal Length
3.180 inches
Refraction Index
1.6110 and 1.7200
Abbe Constant
58.800 and 29.300
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-1.297 inches and 2.674 inches
Element Right Surface Radius
-1.297 inches and -4.898 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
1. Fire control, telescope, mk97 mod 1
94464 Series Parts

Pricing and Availability

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944640 Cross Reference