Features
type 620-603 grade b class 1 mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
-
Diameter:
Between 3.157 inches and 3.158 inches
-
Axial Thickness:
Between 0.425 inches and 0.433 inches
-
Equivalent Focal Length:
6.849 inches
-
Back Focal Length:
6.849 inches
-
Single Lens Style:
Plano-convex
-
Element Left Surface Radius:
4.249 inches
-
Element Right Surface Radius:
4.249 inches
-
Material:
Glass, optical, mil-g-174, class 1, grade b, type 620-603
-
Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
-
National Stock Number (nsn):
6650-01-091-1989