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National Stock Number:
1240-01-330-9173
Federal Supply Class:
1240
National Item Identification Number:
013309173
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.
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Manufacturer Information:
| 717751363-039 | 04939 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
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