Product Technical Spec.
Axial Thickness:
0.063 inches and 0.335 inches
Compound Lensaxial Thickness:
0.398 inches
Compound Lens Edge Thickness:
0.375 inches
Equivalent Focal Length:
4.392 inches
Back Focal Length:
4.991 inches
Front Focal Length:
4.616 inches
Refraction Index:
1.6490 and 1.5170
Abbe Constant:
33.700 and 64.500
Compound Lens Style:
Doublet
Individual Lens Style:
Double concave and double convex
Element Left Surface Radius:
1.732 inches
Element Right Surface Radius:
0.753 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:
Binocular, xm18
Item Name:
Lens,telescope
Cross Referenced Parts
No other part numbers with same form, fit, and function found.