Technical Specifications of NSN
Axial Thickness:
0.354 inches and 0.055 inches
Compound Lensaxial Thickness:
0.409 inches
Compound Lens Edge Thickness:
0.291 inches
Equivalent Focal Length:
1.160 inches
Back Focal Length:
0.901 inches
Refraction Index:
1.5410 and 1.6170
Abbe Constant:
59.900 and 36.600
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and plano-concave
Element Left Surface Radius:
0.638 inches
Element Right Surface Radius:
0.480 inches
Material:
Glass, optical, mil-g-174, class 1, grade d
Material:
Glass, optical, mil-g-174, class 1, grade d
Fsc Application Data:
Binocular, fire control
Other Related Parts
No other part numbers with same form, fit, and function found.