6540-01-375-0089 LENS BLANK,OPHTHALMIC,BIFOCAL,SE Index 6540-01-375-0091 LENS BLANK,OPHTHALMIC,BIFOCAL,SE

National Stock Number:
6540-01-375-0090

Federal Supply Class:
6540

National Item Identification Number:
013750090

Description:
LENS BLANK,OPHTHALMIC,BIFOCAL,SE

Detail:
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.


Manufacturer Information:
P4.50 BC, P3.25 ADD0G0R3SILOR OPTICAL OF FLORIDA INC


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