9330-01-302-9672 WINDOW,OBSERVATION Index 7690-01-302-9674 MARKER,IDENTIFICATION

National Stock Number:
9340-01-302-9673

Federal Supply Class:
9340

National Item Identification Number:
013029673

Description:
WINDOW,OBSERVATION

Detail:
A TRANSPARENT ITEM OF A PREDETERMINED SIZE THAT PERMITS UNOBSTRUCTED AND UNDISTORTED VIEW OF A DESIRED AREA. IT MAY INCLUDE A FRAME, HAVE REFERENCE MARKINGS, GRID LINES AND MAY BE HEAT STRENGTHENED AND/OR TINTED. IT IS GENERALLY USED WHERE SAFETY, SECURITY, AND/OR THE RESTRICTION OF FOREIGN MATTER ARE REQUIRED, SUCH AS THE VISUAL EXAMINATION OF THE INSIDE OF PRESSURIZED TANKS, LIQUID SIGHTS, CONTROLLED LIQUID FLOW, AND INSPECTION OF EQUIPMENT ENCLOSED IN A HOUSING. SEE WINDOW (AS MODIFIED); SCALE, CATHODE RAY TUBE; SCALE, PLOTTING; WINDOW, METAL; WINDOW, WOOD; AND WINDOW PANEL, AIRCRAFT.


Manufacturer Information:
6051128634860NORTHROP GRUMMAN SYSTEMS CORPORATION
60511286-734860NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
EDGE TYPEBEVELED
CRITICALITY CODE JUSTIFICATIONFEAT
OVERALL DIAMETER0.369 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
OVERALL THICKNESS0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
MATERIAL TRANSPARENCYCLEAR
MATERIALGLASS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MATERIAL
SPECIAL FEATURESMATERIAL KG5 FILTER GLASS
STYLE DESIGNATORCIRCULAR
SURFACE FINISHPOLISHED


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