Optical Instrument Lens

Part Number 7688773

Quality inspected with certificate of conformity. For questions and pricing call us at +1 210-468-8090

type 617-550 grade d class 1 mil-g-174 optical glass material.

Includes quality control certificate of conformance.

Diameter:

Between 1.297 inches and 1.300 inches
Axial Thickness:

Between 0.590 inches and 0.610 inches
Equivalent Focal Length:

1.578 inches
Back Focal Length:

1.286 inches
Refraction Index:

1.6170
Abbe Constant:

55.000
Single Lens Style:

Double convex
Element Left Surface Radius:

1.236 inches
Element Right Surface Radius:

3.740 inches
Material:

Glass, optical, mil-g-174, class 1, grade d, type 617-550
Fsc Application Data:

Periscope, tank
Federal Supply Class (fsc):

Optical instruments, test equipment, components and accessories
National Stock Number (nsn):

6650-00-768-8773
Special Features:

Edges chamfered 0.010 to 0.020 in. By 45 deg. Both surfaces coated with magnesium fluoride. Rim ground.

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