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		                        | National Stock Number:
 1560-01-591-0539
 
 Federal Supply Class:
 1560
 
 National Item Identification Number:
 015910539
 
 Description:
 RIB,STIFFENER,AIRCRAFT
 
 Detail:
 A VERTICAL, RELATIVELY SHORT, RIB LOCATED IN A FUSELAGE, NACELLE, POD, AND THE LIKE. IT FOLLOWS THE PERIPHERY AND PROVIDES ADDITIONAL RIGIDITY. IT MAY JOIN VARIOUS COMPONENTS SUCH AS STRINGERS, LONGERONS, AND THE LIKE. IT IS SUPPLEMENTARY TO THE FRAMES AND BLUKHEADS. SEE ALSO RIB (1), AIRFOIL.
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 Manufacturer Information:
 
 | 162D612501-1003 | 76301 | THE BOEING COMPANY | 
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 Techincal Specification:
 
 | AIRCRAFT MISSION DESIGN SERIES | A-10 WRP |  | III MATERIAL | ALUMINUM ALLOY 7075 |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | RIB, ASSY,RH,WS 121.0, OUTERWING LEADING EDGE |  | PROPRIETARY CHARACTERISTICS | PACS | 
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