Technical Specifications of NSN
Axial Thickness:
0.105 inches and 0.484 inches
Compound Lensaxial Thickness:
0.589 inches
Compound Lens Edge Thickness:
0.468 inches
Equivalent Focal Length:
3.426 inches
Back Focal Length:
3.654 inches
Refraction Index:
1.7200 and 1.5170
Abbe Constant:
29.300 and 64.500
Compound Lens Style:
Doublet
Individual Lens Style:
Double concave and double convex
Element Left Surface Radius:
-11.265 inches and 1.531 inches
Element Right Surface Radius:
1.531 inches and -1.128 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:
Finder, range, integrated with fire control equipment
Item Name:
Objective Lens
Other Related Parts
No other part numbers with same form, fit, and function found.