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National Stock Number:
9340-01-229-2370
Federal Supply Class:
9340
National Item Identification Number:
012292370
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:
| 257-31210 | 65379 | MARLAND ENVIRONMENTAL SYSTEMS INC SWEETWATER DIV | | 257-31210 | U4272 | MARSHALL-ORR LTD |
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Techincal Specification:
| MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | PLASTIC METHYL METHACRYLATE | | III STYLE DESIGNATOR | CIRCULAR | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 12.000 INCHES NOMINAL | | OVERALL THICKNESS | 0.250 INCHES NOMINAL | | SPECIAL FEATURES | THERE ARE SIX HOLES 0.312 IN. DIA 60.0 DEG APART ON A 10.500 BOLT CIRCLE DIA |
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