Model: 89-6-19-63
Se Bifocal Ophthalmic Lens BlankSpecial Features:
Matl cr-39; flat top; segment positioned 5 mm below and 5 mm in from geometric center for right and left lenses, plus or minus 2 mm
Properties:
A transparent optical element consisting of a major blank and a bifocal segment. The blank and segment have been pressed in a glass mold to an approximate size and shape, and are ground and polished to a finished diopter curvature on one surface only.
Part 89-6-19-63 NSN 6540-01-311-1090
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 7014001000
- SITC: 66595
- End Use: Other industrial supplies
- NAICS: 327212
- USDA: 1
Freight Class: Lens blanks (other than for spectacles) not optically worked, of glass, (optical elements)
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