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National Stock Number:
9340-00-990-7253
Federal Supply Class:
9340
National Item Identification Number:
009907253
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:
| 8619814 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| OVERALL WIDTH | 7.600 INCHES MINIMUM AND 7.615 INCHES MAXIMUM | | OVERALL THICKNESS | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | OVERALL LENGTH | 3.037 INCHES MINIMUM AND 3.052 INCHES MAXIMUM | | FEATURES PROVIDED | LIGHT REDUCING | | SURFACE FINISH | POLISHED | | SPECIAL FEATURES | LIGHT DEVIATION NOT TO EXCEED 3 MINUTES OF ARC,SURFACE QUALITY 80-50 AND ONE EDGE 0.120 IN. /FACE WIDTH/ BY 30 DEG CHAMFER | | MATERIAL TRANSPARENCY | CLEAR | | COLOR | NATURAL | | FOURTH CORNER RADIUS | 0.187 INCHES NOMINAL | | MATERIAL | GLASS PLATE | | STYLE DESIGNATOR | ROUNDED CORNERS | | PLY QUANTITY | 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174,CLASS 1,GRADE C MIL STD SINGLE MATERIAL RESPONSE | | THIRD CORNER RADIUS | 0.187 INCHES NOMINAL | | FIRST CORNER RADIUS | 0.187 INCHES NOMINAL | | EDGE TYPE | BEVELED | | SECOND CORNER RADIUS | 0.187 INCHES NOMINAL |
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