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		                        | National Stock Number:
 9340-01-390-3729
 
 Federal Supply Class:
 9340
 
 National Item Identification Number:
 013903729
 
 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:
 
 | 335522 | 31976 | HERAEUS KULZER LLC |  | LL-H37-0172 | 66736 | NAVAL MEDICAL MATERIAL SUPPORT COMMAND DETACHMENT | 
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 Techincal Specification:
 
 | SPECIAL FEATURES | END ITEM APPLICATION FURNACE BURNOUT CASTING,DENTAL; MODEL ACCU- THERM II, 2000; PART NO 335565 | 
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