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National Stock Number:
9340-00-400-2958
Federal Supply Class:
9340
National Item Identification Number:
004002958
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:
| KS11678A | 81100 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION I DBA ES MARINE SYSTEMS | | KS11678ASYM12 17 | 81100 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION I DBA ES MARINE SYSTEMS | | MILG2857 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| EDGE TYPE | FLAT FINISH | | ENVIRONMENTAL PROTECTION | WEATHER RESISTANT | | HARDNESS RATING | 1800.0 MOHS NOMINAL | | OVERALL LENGTH | 29.375 INCHES NOMINAL | | OVERALL THICKNESS | 1.740 INCHES NOMINAL | | OVERALL WIDTH | 26.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | DD-G-451,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | GLASS | | SPECIAL FEATURES | 5/16 IN. BUSBAR AROUND WINDOW PERIMETER | | PLY QUANTITY | 4 | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY SYMBOL 12-17 | | STYLE DESIGNATOR | SQUARE CORNERS | | SURFACE FINISH | POLISHED | | TEMP AT MAXIMUM OPERATING PRESSURE | 150.0 FAHRENHEIT |
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