9340-00-064-7275 WINDOW,OBSERVATION Index 5915-00-064-7277 FILTER,BAND PASS

National Stock Number:
9340-00-064-7276

Federal Supply Class:
9340

National Item Identification Number:
000647276

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:
339-255-3-10070876BATH IRON WORKS CORPORATION


Techincal Specification:
EDGE TYPEFLAT FINISH
ENVIRONMENTAL PROTECTIONWEATHER RESISTANT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-2857 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIAL TRANSPARENCYCLEAR
MATERIALGLASS
OVERALL LENGTH20.000 INCHES NOMINAL
OVERALL THICKNESS0.406 INCHES NOMINAL
OVERALL WIDTH26.000 INCHES NOMINAL
PLY QUANTITY1
SPECIAL FEATURESCORNERS SLIGHTLY ROUNDED
STYLE DESIGNATORSQUARE CORNERS
SURFACE FINISHPOLISHED


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