9340-00-516-8920 WINDOW,OBSERVATION Index 2815-00-516-8924 RING,PISTON

National Stock Number:
9340-00-516-8921

Federal Supply Class:
9340

National Item Identification Number:
005168921

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:
38F14507-126512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
EDGE TYPEBEVELED
OVERALL DIAMETER2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM
OVERALL THICKNESS0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
MATERIAL TRANSPARENCYCLEAR
MATERIALGLASS
PLY QUANTITY1
STYLE DESIGNATORCIRCULAR


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