Matl must meet cl a ultrasonic insp req per mil-8950; alt matl may be fabricated from 4 x 6 x 8 plate stock specification fms 3002-t851
A principal chordwise rib that gives cross-sectional shape, strength and rigidity to a portion of a wing, stabilizer, and the like. See also rib (1), stiffener, aircraft
Classification: Other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites)
NSN 5965-01-192-8989
NSN 6645-01-060-7988
NSN 5965-01-153-1965
NSN 6105-00-079-6436
NSN 5990-00-959-3312
NSN 6220-01-016-8128
NSN 5855-01-068-3683
NSN 6110-01-476-8743
NSN 5965-01-123-3770
NSN 5930-01-119-2847
NSN 6105-01-609-3415
NSN 6110-01-481-4480