6540-00-001-0208 LENS,OPHTHALMIC,PLANO CYLINDER Index 6540-00-001-0210 LENS,OPHTHALMIC,PLANO CYLINDER

National Stock Number:
6540-00-001-0209

Federal Supply Class:
6540

National Item Identification Number:
000010209

Description:
LENS,OPHTHALMIC,PLANO CYLINDER

Detail:
A TRANSPARENT OPTICAL ELEMENT HAVING A PLANO DIOPTER BASE CURVE AND CYLINDRICAL DIOPTER CROSS CURVE USED TO CORRECT ASTIGMATIC (MULTIFOCUS) VISION OF THE EYE.


Manufacturer Information:
425PL.CYL,6BC,CR-39,71MM D92083HIS VISION INC
MILL3682481349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BASE CURVE PLANO0.00 PLANO NOMINAL
CROSS CURVE DIOPTER4.25 MINUS NOMINAL
CROSS-SECTIONAL SHAPE STYLEPLANO CYLINDER
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY DIAMETER
DIAMETER71.0 MILLIMETERS MINIMUM
LIGHT TRANSMISSIONUNTINTED
MATERIAL AND LOCATIONPLASTIC SINGLE VISION
NONDEFINITIVE SPEC/STD DATAB CLASS AND 2 STYLE
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS OPHTHALMIC PLANO CYLINDER PLASTIC M4.25 CYLINDER
STYLE DESIGNATORROUND
SUPPLEMENTARY FEATURESUNCUT
THICKNESS1.6 MILLIMETERS NOMINAL


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