6650-00-118-1937 MOUNT,TELESCOPE Index 1240-00-118-1939 INSULATOR PLASTIC

National Stock Number:
1240-00-118-1938

Federal Supply Class:
1240

National Item Identification Number:
001181938

Description:
FILTER,LIGHT,OPTICAL INSTRUMENT

Detail:
AN ITEM HAVING TWO PLANE-PARALLEL SURFACES AND CONSISTING OF A POLARIZING MATERIAL BONDED BETWEEN GLASS OR PLASTIC. THIS ITEM TRANSMITS LIGHT IN ONLY ONE PLANE AND IS USUALLY USED IN PAIRS TO VARY THE LIGHT TRANSMITTED INTO OR THROUGH AN OPTICAL INSTRUMENT. EXCLUDES WINDOW, OPTICAL INSTRUMENT.


Manufacturer Information:
1054507319200US ARMY ARDEC RDECOM


Techincal Specification:
DENSITY VARIABILITYNOT VARIABLE
SURFACE MATERIALGLASS
WHITE LIGHT TRANSMISSION IN PERCENT36.0 SINGLE FILTER
OVERALL DIAMETER4.590 INCHES MINIMUM AND
4.600 INCHES MAXIMUM
OVERALL THICKNESS0.235 INCHES MINIMUM AND
0.265 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE19200
DESIGN CONTROL REFERENCE10545073


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