Alt matl -9 may be fab from 2 x 6 x 8 inch stock specification fms-3002-t851; dim are stock matl
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 6685-00-169-6505
NSN 6135-00-152-8729
NSN 5855-00-256-5562
NSN 4140-00-983-1597
NSN 6220-00-809-4497
NSN 6105-01-024-9907
NSN 5930-00-862-0263
NSN 5960-01-151-4518
NSN 6240-01-177-3305
NSN 5930-01-620-5636
NSN 5920-00-960-3567
NSN 5985-01-574-2400