6540-00-935-9913 LENS OPHTH+0.75 +0.25 Index 2915-00-935-9980 SEAL ASSEMBLY,DIAPHRAGM,FUEL CON

National Stock Number:
6540-00-935-9973

Federal Supply Class:
6540

National Item Identification Number:
009359973

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:
CROSS-SECTIONAL SHAPE STYLESPHEROCYLINDER COMPOUND
CYLINDER CURVE OUTSIDE DIOPTER0.75 PLUS MAXIMUM
DIAMETER58.0 MILLIMETERS NOMINAL
HEIGHT56.5 MILLIMETERS NOMINAL
LIGHT TRANSMISSIONTINTED
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS OPHTHALMIC COMPOUND MINUS 0.25 WITH PLUS 0.75
MATERIALGLASS SINGLE VISION
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 4 STYLE AND D CLASS
SPHERE CURVE OUTSIDE DIOPTER0.25 MINUS MAXIMUM
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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