5977-00-408-2776 BRUSH,ELECTRICAL CONTACT Index 4820-00-408-2781 SEAT,VALVE

National Stock Number:
9340-00-408-2777

Federal Supply Class:
9340

National Item Identification Number:
004082777

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:
55S140M153553AMETEK INC SCHUTTE AND KOERTING DIV


Techincal Specification:
OVERALL DIAMETER7.500 INCHES MINIMUM AND 7.531 INCHES MAXIMUM
OVERALL THICKNESS0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM
MATERIAL TRANSPARENCYCLEAR
MATERIALGLASS
PLY QUANTITY1
STYLE DESIGNATORCIRCULAR


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