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Optical Instrument Lens

Model / MPN: 1049122 | NSN: 6650-00-210-4399
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
6650-00-210-4399
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
Between 1.750 inches and 1.752 inches
Axial Thickness
0.370 inches and 0.150 inches
Compound Lensaxial Thickness
0.520 inches
Compound Lens Edge Thickness
0.296 inches
Equivalent Focal Length
3.133 inches
Back Focal Length
3.176 inches
Front Focal Length
2.773 inches
Refraction Index
1.6110 and 1.6490
Abbe Constant
58.800 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and double concave
Element Left Surface Radius
-6.169 inches and 1.700 inches
Element Right Surface Radius
-6.169 inches and 16.598 inches
Material
Glass, optical, mil-g-174, class 1, grade b
Material
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data
Optical sighting and ranging equipment
10491 Series Parts

Pricing and Availability

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1049122 Cross Reference
  • 1049122
  • MIL1803