4140-01-437-4138 FAN,CENTRIFUGAL Index 5305-01-437-4140 SCREW,SHOULDER

National Stock Number:
6070-01-437-4139

Federal Supply Class:
6070

National Item Identification Number:
014374139

Description:
MASK,OPTICAL INSTRUMENT

Detail:
A THIN METALLIC OR NONMETALLIC PLATE WHICH HAS AN OPENING OF A SPECIFIC SIZE. ITS FUNCTION IS TO LIMIT THE FIELD OF VIEW OF A TELESCOPE, PERISCOPE OR THE LIKE BY BLOCKING PERIPHERAL LIGHT OR IMAGES. EXCLUDES MASK, LANTERN SLIDE, PHOTOGRAPHIC.


Manufacturer Information:
RM-5000XA50VYTRAN CORPORATION


Techincal Specification:
SPECIAL FEATURES500 UM; REPLACEABLE RECOAT


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