Technical Specifications of NSN
Axial Thickness:
0.118 inches and 0.059 inches
Compound Lensaxial Thickness:
0.177 inches
Compound Lens Edge Thickness:
0.156 inches
Equivalent Focal Length:
4.204 inches
Back Focal Length:
4.165 inches
Front Focal Length:
4.133 inches
Refraction Index:
1.5720 and 1.6170
Abbe Constant:
57.400 and 36.600
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and meniscus diverging
Element Left Surface Radius:
-1.283 inches and 3.449 inches
Element Right Surface Radius:
-1.283 inches and -5.724 inches
Material:
Glass, optical, jan-g-174, grade c
Material:
Glass, optical, jan-g-174, grade c
Fsc Application Data:
Fire control, range finder, mk 57
Item Name:
Objective Lens
Other Related Parts
Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC