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

Optical Instrument Lens

Model / MPN: 5204253 | NSN: 6650-00-520-4253
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
6650-00-520-4253
Sold in multiples of
DEMIL
NO
Diameter
Between 0.686 inches and 0.689 inches
Axial Thickness
0.236 inches and 0.024 inches
Compound Lensaxial Thickness
Between 0.240 inches and 0.272 inches
Compound Lens Edge Thickness
0.166 inches
Equivalent Focal Length
1.444 inches
Back Focal Length
1.281 inches
Refraction Index
1.5411 and 1.6210
Abbe Constant
59.900 and 36.200
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
0.793 inches and -0.595 inches
Element Right Surface Radius
-0.595 inches and -4.220 inches
Material
Glass, optical, mil-g-174, grade c, type 541-599 or glass, optical, mil-g-174, grade c, type 621-362
Material
Glass, optical, mil-g-174, grade c, type 541-599 or glass, optical, mil-g-174, grade c, type 621-362
Fsc Application Data
Binocular, m7, m16
52042 Series Parts

Pricing and Availability

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5204253 Cross Reference
  • 6650005204253
  • 1240005204253