Material 7075 al per qq-a-367 comp 7075 temper t73 precision die forging-may be fabricated from fms-3002-t851. Must be ultrasonic insp per mil-i-8950cl- opposite 16w113-23- finish a427 make from 16w113-22
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.
Classification: Other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites)
NSN 6610-01-139-4713
NSN 5996-01-449-0666
NSN 6240-01-562-6938
NSN 5996-01-571-5252
NSN 6650-01-266-8762
NSN 5915-00-891-8158
NSN 5985-00-518-1748
NSN 5915-01-335-1717
NSN 5855-00-357-1158
NSN 6610-01-168-7943
NSN 7035-01-271-1643
NSN 6145-01-380-0065