6540-00-104-5041 LENS BLANK,OPHTHALMIC,COMPOUND,S Index 5340-00-104-5053 BRACKET,ANGLE

National Stock Number:
6540-00-104-5051

Federal Supply Class:
6540

National Item Identification Number:
001045051

Description:
LENS BLANK,OPHTHALMIC,COMPOUND,S

Detail:
A TRANSPARENT MOLDED OPTICAL ELEMENT HAVING A SPHERICAL DIOPTER BASE CURVE AND A CYLINDRICAL DIOPTER CROSS CURVE, AN APPROXIMATE SIZE AND SHAPE, AND HAS BEEN GROUND AND POLISHED TO A FINISHED CURVATURE ON ONE SURFACE ONLY.


Manufacturer Information:
MILL1699181349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BASE CURVE DIOPTER4.25 PLUS NOMINAL
CROSS-SECTIONAL SHAPE STYLESPHEROCYLINDER COMPOUND
CYLINDER CURVE OUTSIDE DIOPTER5.50 PLUS MAXIMUM
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY DIMENSIONS
DIAMETER58.0 MILLIMETERS MINIMUM AND 63.0 MILLIMETERS MAXIMUM
HEIGHT58.0 MILLIMETERS MINIMUM AND 63.0 MILLIMETERS MAXIMUM
LIGHT TRANSMISSIONUNTINTED
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS BLANK OPHTHALMIC COMP SEMIFINISHED CYLINDER 4.25 PLUS 5.50
MATERIALGLASS SODA-LIME SINGLE VISION
NONDEFINITIVE SPEC/STD DATA1 TYPE AND C CLASS
STYLE DESIGNATORROUND-RECTANGULAR WITH ROUNDED CORNERS
WIDTH58.0 MILLIMETERS MINIMUM AND 63.0 MILLIMETERS MAXIMUM


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