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National Stock Number:
9340-00-447-1801
Federal Supply Class:
9340
National Item Identification Number:
004471801
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:
| 8991255-1 | 02769 | LOCKHEED MARTIN CORPORATION | | 8991255-1 | 49671 | LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES | | B5590 | 70925 | BIJUR LUBRICATING CORP |
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Techincal Specification:
| EDGE TYPE | FLAT FINISH | | FSC APPLICATION DATA | GLASS FABRICATED MATERIALS | | INSULATING AIR SPACE MATERIAL ARRANGEMENT | METAL TO GLASS | | OVERALL DIAMETER | 0.878 INCHES MINIMUM AND 0.879 INCHES MAXIMUM | | OVERALL THICKNESS | 0.300 INCHES NOMINAL | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | GLASS | | STYLE DESIGNATOR | CIRCULAR |
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