Technical Specifications of NSN
Axial Thickness:
0.087 inches and 0.421 inches
Compound Lensaxial Thickness:
0.508 inches
Compound Lens Edge Thickness:
0.359 inches
Equivalent Focal Length:
4.701 inches
Back Focal Length:
5.414 inches
Refraction Index:
1.6490 and 1.5170
Abbe Constant:
33.800 and 64.500
Compound Lens Style:
Doublet
Individual Lens Style:
Double concave and double convex
Element Left Surface Radius:
1.983 inches
Element Right Surface Radius:
0.854 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:
Panoramic telescope with fire control equipment
Item Name:
Lens,telescope
Other Related Parts
No other part numbers with same form, fit, and function found.