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National Stock Number:
9330-01-049-4619
Federal Supply Class:
9330
National Item Identification Number:
010494619
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:
| 608-4,669-575-9 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 608-4,669-592 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 608-4669592 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| EDGE TYPE | FLAT FINISH | | ENVIRONMENTAL PROTECTION | HIGH TEMPERATURE RESISTANT AND WEATHER RESISTANT | | HEAT ABSORBING CHARACTERISTIC | HIGH LIGHT TRANSMISSION | | OVERALL DIAMETER | 4.490 INCHES MINIMUM AND 4.510 INCHES MAXIMUM | | OVERALL THICKNESS | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | L-P-391,ITEM A,TYPE II,GRADE A FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | PLASTIC | | MINIMUM TENSILE STRENGTH | 9000 POUNDS PER SQUARE INCH | | PLY QUANTITY | 1 | | STYLE DESIGNATOR | CIRCULAR | | SURFACE FINISH | FINE FINISHED |
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