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

Optical Instrument Lens

Model / MPN: 278694PC14 | NSN: 6650-00-155-1764
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
6650-00-155-1764
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
5.0 millimeters
End Application
Rangefinder mk57
Axial Thickness
2.2 millimeters and 1.1 millimeters
Compound Lensaxial Thickness
3.3 millimeters
Equivalent Focal Length
2.700 centimeters
Back Focal Length
2.720 centimeters
Front Focal Length
2.760 centimeters
Refraction Index
1.5725 and 1.6170
Abbe Constant
57.400 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
22.1 millimeters and -8.5 millimeters
Element Right Surface Radius
8.5 millimeters and 30.7 millimeters
Material
Glass, optical, jan-g-174
Material
Glass, optical, jan-g-174
278694PC Series Parts

Pricing and Availability

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278694PC14 Cross Reference
  • 745659PC1
  • 745659PC1
  • 278694PC14