Technical Specifications of NSN
Axial Thickness:
0.252 inches and 0.108 inches
Compound Lensaxial Thickness:
0.360 inches
Compound Lens Edge Thickness:
0.267 inches
Equivalent Focal Length:
4.790 inches or 4.800 inches
Back Focal Length:
4.532 inches or 4.728 inches
Refraction Index:
Between 1.5170 and 1.6490
Abbe Constant:
33.700 and 64.500
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and plano-concave
Material:
Glass, optical, jan-g-174, grade c
Material:
Glass, optical, jan-g-174, grade c
Fsc Application Data:
Telescope, integrated with fire control equipment
Item Name:
Objective Lens
Other Related Parts
No other part numbers with same form, fit, and function found.