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National Stock Number:
9340-00-142-0979
Federal Supply Class:
9340
National Item Identification Number:
001420979
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:
| 35087PCQ3 | 81316 | PORTSMOUTH NAVAL SHIPYARD | | 35748PCQ3 | 81316 | PORTSMOUTH NAVAL SHIPYARD | | 417885PCQ3 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 466333CSPCQ3 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 547-59H179PCQ3 | 14921 | CRAMP SHIPBUILDING AND DRYDOCK CO | | B2623-2 | 95094 | CLARK-RELIANCE LLC | | MILG2697 | 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 | FLAT UNFINISHED | | OVERALL DIAMETER | 4.000 INCHES NOMINAL | | OVERALL THICKNESS | 0.625 INCHES NOMINAL | | MATERIAL TRANSPARENCY | CLEAR | | MATERIAL | GLASS | | NONDEFINITIVE SPEC/STD DATA | A TYPE | | PLY QUANTITY | 1 | | STYLE DESIGNATOR | CIRCULAR | | SURFACE FINISH | POLISHED |
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