4935-00-450-8254 TRIVET PLATE ASSEMBLY Index 4935-00-450-8257 SLIP RING ASSEMBLY,FIFTY CIRCUIT

National Stock Number:
9340-00-450-8256

Federal Supply Class:
9340

National Item Identification Number:
004508256

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.


Manufacturer Information:
90-29212881METAL TEXTILES CORPORATION
90-29218565PARKER-HANNIFIN CORPORATION
C238928-111982NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
EDGE TYPEFLAT FINISH
OVERALL DIAMETER2.960 INCHES MINIMUM AND 2.990 INCHES MAXIMUM
OVERALL THICKNESS0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
MATERIAL TRANSPARENCYCLEAR
PLY QUANTITY3
STYLE DESIGNATORCIRCULAR
WIRE MESH PATTERNSQUARE


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