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National Stock Number:
9340-00-268-9832
Federal Supply Class:
9340
National Item Identification Number:
002689832
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:
| 14551-79 | 70876 | BATH IRON WORKS CORPORATION | | 332B015G30 | 22375 | FISCHER AND PORTER CO | | DE99S4810-537PC224 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | MIL-G-2860 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| EDGE TYPE | BEVELED | | ENVIRONMENTAL PROTECTION | IMPACT RESISTANT AND THERMAL SHOCK RESISTANT | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-2860,TYPE I MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | GLASS BOROSILICATE | | NONDEFINITIVE SPEC/STD DATA | I TYPE | | OVERALL DIAMETER | 4.500 INCHES NOMINAL | | OVERALL THICKNESS | 0.500 INCHES NOMINAL | | STYLE DESIGNATOR | CIRCULAR | | SURFACE FINISH | FINE FINISHED | | TEMP AT MAXIMUM OPERATING PRESSURE | 400.0 FAHRENHEIT |
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