Technical Specifications of NSN
Axial Thickness:
0.484 inches and 0.092 inches
Compound Lensaxial Thickness:
0.576 inches
Compound Lens Edge Thickness:
0.436 inches
Equivalent Focal Length:
3.729 inches
Back Focal Length:
3.169 inches
Refraction Index:
1.6380 and 1.6490
Abbe Constant:
55.500 and 33.800
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and double concave
Element Left Surface Radius:
1.488 inches
Element Right Surface Radius:
1.366 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