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Optical Instrument Lens

Model / MPN: 278701PC7 | NSN: 6650-00-155-1729
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
6650-00-155-1729
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
2.440 inches
Axial Thickness
0.315 inches and 0.244 inches
Compound Lensaxial Thickness
0.559 inches
Compound Lens Edge Thickness
0.530 inches
Equivalent Focal Length
46.322 inches
Back Focal Length
45.988 inches
Front Focal Length
46.322 inches
Refraction Index
1.5170 and 1.6170
Abbe Constant
64.500 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-19.409 inches and 22.429 inches
Element Right Surface Radius
19.409 inches and -164.818 inches
Material
Glass, optical, jan-g-174, grade c
Material
Glass, optical, jan-g-174, grade c
Fsc Application Data
Fire control, range finder mk 33 mod 5
278701PC Series Parts

Pricing and Availability

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278701PC7 Cross Reference
  • 278701PC7