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National Stock Number:
9340-00-526-7360
Federal Supply Class:
9340
National Item Identification Number:
005267360
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:
| 1426-96 | 89944 | ELBITAMERICA, INC. | | 1426-96 | 94809 | PLUMMER PRECISION OPTICS CO |
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Techincal Specification:
| EDGE TYPE | BEVELED | | OVERALL DIAMETER | 19.900 INCHES MINIMUM AND 20.000 INCHES MAXIMUM | | OVERALL THICKNESS | 2.900 INCHES MINIMUM AND 3.100 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174,GRADE C,523-586,C1 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | GLASS CROWN | | STYLE DESIGNATOR | CIRCULAR | | SURFACE FINISH | POLISHED |
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