Features
type 517-642 grade a mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Width:
Between 0.495 inches and 0.500 inches
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Length:
Between 0.635 inches and 0.640 inches
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Axial Thickness:
0.039 inches
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Material:
Glass, optical, mil-g-174, grade a, type 517-642
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-01-329-4742