5930-00-789-4014 ADAPTER,SWITCH ACTUATOR Index 6650-00-789-4016 LENS,OPTICAL INSTRUMENT

National Stock Number:
6650-00-789-4015

Federal Supply Class:
6650

National Item Identification Number:
007894015

Description:
LENS,OPTICAL INSTRUMENT

Detail:
An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.


Manufacturer Information:
856694119200US ARMY ARDEC RDECOM


Techincal Specification:
ELEMENT RIGHT SURFACE RADIUS1.270 INCHES
ELEMENT LEFT SURFACE RADIUS1.270 INCHES
ABBE CONSTANT59.600
AXIAL THICKNESS0.118 INCHES MINIMUM AND 0.134 INCHES MAXIMUM
BACK FOCAL LENGTH2.369 INCHES
DIAMETER0.942 INCHES MINIMUM AND 0.945 INCHES MAXIMUM
EQUIVALENT FOCAL LENGTH2.452 INCHES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, GRADE B, TYPE 518-596 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALGLASS OPTICAL
REFRACTION INDEX1.5180 NOMINAL
SINGLE LENS STYLEPLANO-CONVEX
SPECIAL FEATURESFRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE


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