Technical Specifications of NSN
Axial Thickness:
0.886 inches and 0.157 inches
Compound Lensaxial Thickness:
1.043 inches
Compound Lens Edge Thickness:
0.729 inches
Equivalent Focal Length:
2.998 inches
Back Focal Length:
2.753 inches
Front Focal Length:
1.710 inches
Refraction Index:
1.6970 and 1.7200
Abbe Constant:
56.100 and 29.300
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and meniscus diverging
Element Left Surface Radius:
-3.150 inches and 4.911 inches
Element Right Surface Radius:
-1.418 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:
Telescope, m69g, integrated with fire control equip
Other Related Parts
No other part numbers with same form, fit, and function found.