Technical Specifications of NSN
Diameter:
Between 1.750 inches and 1.752 inches
Axial Thickness:
0.370 inches and 0.150 inches
Compound Lensaxial Thickness:
0.520 inches
Compound Lens Edge Thickness:
0.296 inches
Equivalent Focal Length:
3.133 inches
Back Focal Length:
3.176 inches
Front Focal Length:
2.773 inches
Refraction Index:
1.6110 and 1.6490
Abbe Constant:
58.800 and 33.800
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and double concave
Element Left Surface Radius:
-6.169 inches and 1.700 inches
Element Right Surface Radius:
-6.169 inches and 16.598 inches
Material:
Glass, optical, mil-g-174, class 1, grade b
Material:
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data:
Optical sighting and ranging equipment
Item Name:
Objective Lens
Other Related Parts
Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC