6540-00-001-0642 LENS,OPHTHALMIC,COMPOUND Index 6540-00-001-0644 LENS,OPHTHALMIC,COMPOUND

National Stock Number:
6540-00-001-0643

Federal Supply Class:
6540

National Item Identification Number:
000010643

Description:
LENS,OPHTHALMIC,COMPOUND

Detail:
A TRANSPARENT OPTICAL ELEMENT HAVING A SPHERICAL CURVE AND A CYLINDRICAL CURVE USED TO CORRECT VISION DEFECTS OF THE EYE.


Manufacturer Information:
MILL3682481349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
P3.25M3.50,8.50BC,71MM,CR-392T804ATLANTA/OLYMPIC OPTICAL CO
P3.25M3.50,8.50BC,71MM,CR-3992083HIS VISION INC


Techincal Specification:
LIGHT TRANSMISSIONUNTINTED
STYLE DESIGNATORROUND
MATERIAL AND LOCATIONPLASTIC SINGLE VISION
DIAMETER71.0 MILLIMETERS MINIMUM
THICKNESS1.6 MILLIMETERS NOMINAL
CROSS-SECTIONAL SHAPE STYLESPHEROCYLINDER COMPOUND
BASE CURVE DIOPTER8.50 PLUS NOMINAL
SPHERE CURVE INSIDE DIOPTER3.25 PLUS MAXIMUM
CYLINDER CURVE INSIDE DIOPTER3.50 MINUS MAXIMUM
NONDEFINITIVE SPEC/STD DATA3 STYLE AND
B CLASS
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY DIAMETER
SUPPLEMENTARY FEATURESUNCUT
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS OPHTHALMIC COMPOUND PLASTIC PLUS 3.25 ON MINUS 3.50


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