Technical Specifications of NSN
Axial Thickness:
0.121 inches and 0.210 inches
Compound Lensaxial Thickness:
0.331 inches
Compound Lens Edge Thickness:
0.306 inches
Equivalent Focal Length:
4.739 inches
Front Focal Length:
4.628 inches
Refraction Index:
Between 1.6110 and 1.6490
Abbe Constant:
33.800 and 58.800
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex
Element Left Surface Radius:
5.3640 inches
Element Right Surface Radius:
1.0420 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:
Sight periscope m28, integrated with fire control equipment
Item Name:
Objective Lens
Other Related Parts
Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC