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		                        | National Stock Number:
 9330-01-389-3364
 
 Federal Supply Class:
 9330
 
 National Item Identification Number:
 013893364
 
 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:
 
 | 1217AS721 | 02387 | NAVAL AIR WARFARE CENTER AIRCRAFT DIV |  | 1217AS721 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY  NOT MATERIAL/PARTS SUPPLIER |  | 71-00659D | 07700 | TECHNICAL WIRE PRODUCTS LLC DBA TWP | 
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 Techincal Specification:
 
 | COLOR | RED |  | MATERIAL DOCUMENT AND CLASSIFICATION | L-P-391,TYPE 1,GRADE C FED SPEC SINGLE MATERIAL RESPONSE |  | MATERIAL TRANSPARENCY | CLEAR |  | MATERIAL | PLASTIC ACRYLIC |  | PLY QUANTITY | 2 |  | OVERALL LENGTH | 5.900 INCHES NOMINAL |  | OVERALL THICKNESS | 0.200 INCHES NOMINAL |  | OVERALL WIDTH | 1.550 INCHES NOMINAL |  | STYLE DESIGNATOR | SQUARE CORNERS |  | SPECIAL FEATURES | TO INCLUDE EMI GASKET | 
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