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National Stock Number: 9330-01-351-8163
Federal Supply Class: 9330
National Item Identification Number: 013518163
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:
6579662 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
OVERALL DIAMETER | 0.695 INCHES MINIMUM AND 0.705 INCHES MAXIMUM | OVERALL THICKNESS | 0.175 INCHES MINIMUM AND 0.180 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-46144,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE | MATERIAL TRANSPARENCY | CLEAR | MATERIAL | PLASTIC | SPECIAL FEATURES | SURFACE FINISH 0.125 MICRO INCH | STYLE DESIGNATOR | CIRCULAR |
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