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National Stock Number:
9330-01-578-7981
Federal Supply Class:
9330
National Item Identification Number:
015787981
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:
| 7607877 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| HARDNESS RATING | 118.0 ROCKWELL M NOMINAL | | OPERATING PRESSURE | 9000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED | | OVERALL DIAMETER | 3.470 INCHES NOMINAL | | OVERALL THICKNESS | 0.475 INCHES MINIMUM AND 0.525 INCHES MAXIMUM | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | PLASTIC | | MINIMUM TENSILE STRENGTH | 9000 POUNDS PER SQUARE INCH | | PART NAME ASSIGNED BY CONTROLLING AGENCY | INAVY AND DWG: WINDOW, FIRE CONTROL | | PLY QUANTITY | 5 | | SPECIAL FEATURES | MATERIAL: ABRASION RESISTANT, UV STABLE, CLEAR POLYCARBONATE | | STYLE DESIGNATOR | CIRCULAR |
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