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National Stock Number:
9340-01-126-8567
Federal Supply Class:
9340
National Item Identification Number:
011268567
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:
| 13040137 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 13040137 | 52808 | DUNLIN MANUFACTURING / SKYPEN INDUSTRIES INC | | 13040137 | 66429 | CVI LASER LLC DBA CVI OPTICAL COMPONENTS |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174,TY 517-642,CL 1,GR A MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | GLASS | | OVERALL DIAMETER | 3.390 INCHES MINIMUM AND 3.400 INCHES MAXIMUM | | OVERALL THICKNESS | 0.175 INCHES MINIMUM AND 0.200 INCHES MAXIMUM | | STYLE DESIGNATOR | CIRCULAR | | SURFACE FINISH | POLISHED | | TEMP AT MAXIMUM OPERATING PRESSURE | 360.0 CELSIUS |
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