6540-00-142-7901 LENS,OPHTHALMIC,COMPOUND Index 6540-00-142-7914 LENS,OPHTHALMIC,COMPOUND

National Stock Number:
6540-00-142-7913

Federal Supply Class:
6540

National Item Identification Number:
001427913

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:
MILL3646081349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BASE CURVE DIOPTER3.50 MINUS NOMINAL
CROSS CURVE DIOPTER0.75 PLUS NOMINAL
CROSS-SECTIONAL SHAPE STYLESPHEROCYLINDER COMPOUND
DIAMETER58.0 MILLIMETERS NOMINAL
HEIGHT56.5 MILLIMETERS NOMINAL
LIGHT TRANSMISSIONTINTED
MATERIAL AND LOCATIONGLASS SINGLE VISION
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 4 STYLE AND D CLASS
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS OPHTHALMIC COMPOUND MINUS 3.50 WITH PLUS 0.75
WIDTH56.5 MILLIMETERS NOMINAL
STYLE DESIGNATORROUND-RECTANGULAR WITH ROUNDED CORNERS
SUPPLEMENTARY FEATURESUNCUT
THICKNESS2.0 MILLIMETERS NOMINAL
TINTED AREA LIGHT TRANSMITTANCE IN PERCENT31.0


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