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		                        | National Stock Number:
 9330-01-461-5892
 
 Federal Supply Class:
 9330
 
 National Item Identification Number:
 014615892
 
 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.
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 Manufacturer Information:
 
 | 3520AS409 | 072E5 | VERTEX MODERNIZATION AND SUSTAINMENT LLC | 
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 Techincal Specification:
 
 | COLOR | BLACK |  | EDGE TYPE | HALF ROUND |  | FIRST CORNER RADIUS | 0.094 INCHES NOMINAL |  | FOURTH CORNER RADIUS | 0.904 INCHES NOMINAL |  | MATERIAL TRANSPARENCY | TRANSLUCENT |  | MATERIAL | PLASTIC |  | OVERALL LENGTH | 4.835 INCHES MINIMUM AND 4.865 INCHES MAXIMUM |  | OVERALL WIDTH | 1.673 INCHES MINIMUM AND 1.703 INCHES MAXIMUM |  | SECOND CORNER RADIUS | 0.094 INCHES NOMINAL |  | SPECIAL FEATURES | WIRE MONEL MESH AND BUSBAR 0.002 DIA |  | STYLE DESIGNATOR | ROUNDED CORNERS |  | THIRD CORNER RADIUS | 0.094 INCHES NOMINAL | 
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