Model #11741684

Optical instrument lens (NSN 6650-00-251-7512)

Special Features
Edges beveled 0.005 to 0.010 in. By 45 deg. Rim and beveled edges ground.

type 523-586 grade b class 1 mil-g-174 optical glass material.

Diameter

Between 0.557 inches and 0.560 inches

Axial Thickness

Between 0.108 inches and 0.128 inches

Equivalent Focal Length

3.176 inches

Back Focal Length

3.098 inches

Refraction Index

1.5230

Abbe Constant

58.600

Single Lens Style

Plano-convex

Element Left Surface Radius

1.661 inches

Material

Glass, optical, mil-g-174, class 1, grade b, type 523-586

Fsc Application Data

Trainer, tank gunnery

Description

Lens,optical Instrument

Cage Code

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