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		                             National Stock Number: 5340-00-623-0045
  Federal Supply Class: 5340
  National Item Identification Number: 006230045
  Description: PLATE,RETAINING,WINDOW
  Detail: A COMPARATIVELY FLAT RIGID ITEM, HAVING A CENTRALLY LOCATED APERTURE, DESIGNED TO HOLD A WINDOW IN POSITION IN MECHANICAL OR OPTICAL INSTRUMENTS. IT MUST HAVE DRILLED AND/OR TAPPED HOLES FOR MOUNTING PURPOSES.
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  Manufacturer Information:
 | 18102 | 00781 | CESSNA AIRCRAFT CO ARC AVIONICS DIV |   
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  Techincal Specification:
 | MATERIAL | PLASTIC PHENOLIC OVERALL |  | SURFACE TREATMENT | VARNISH OVERALL |  | SHAPE | ROUND PLATE |  | APERTURE SHAPE | ROUND |  | DIAMETER | 5.750 INCHES NOMINAL APERTURE |   | 0.112 INCHES NOMINAL MOUNTING HOLE |   | 6.563 INCHES NOMINAL OUTSIDE |  | THICKNESS | 0.312 INCHES NOMINAL OVERALL |  | MOUNTING HOLE TYPE | THREADED |  | MOUNTING CONFIGURATION | EQUALLY SPACED ON 6.250 IN. DIA CIRCLE |  | MOUNTING HOLE QUANTITY | 12 |  | FEATURES PROVIDED | APERTURE |  | SPECIAL FEATURES | COUNTERBORE DIAMETER:6.031 IN NOM;COUNTERBORE DEPTH:0.198 IN NOMINAL;THREAD SIZE:0.112 IN.-40;SCREW THREAD SERIES DESIGNATOR:NC;APERTURE TYPE:COUNTERBORED |  | FSC APPLICATION DATA | DIRECTION FINDER SETS,RADIO NAVIGATION,AIRBORNE |   
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