Technical Specifications of NSN
Axial Thickness:
0.461 inches and 0.118 inches
Compound Lensaxial Thickness:
0.579 inches
Compound Lens Edge Thickness:
0.392 inches
Equivalent Focal Length:
6.790 inches
Back Focal Length:
6.516 inches
Refraction Index:
1.5110 and 1.6490
Abbe Constant:
63.500 and 33.800
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and meniscus diverging
Element Left Surface Radius:
4.410 inches
Element Right Surface Radius:
2.897 inches
Material:
Glass, optical, mil-g-174, class 1, grade c
Material Specification:
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data:
Periscope, integrated with fire control equipment
Item Name:
Collimator,lens
Other Related Parts
No other part numbers with same form, fit, and function found.