National Stock Number: 1560-99-190-7467
  Federal Supply Class: 1560
  National Item Identification Number: 991907467
  Description: RIB,STIFFENER,AIRCR
  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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