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 5998-00-232-2137
NSN 5975-00-541-8531
NSN 5925-00-377-6368
NSN 5905-00-080-6833
NSN 5990-01-561-7802
NSN 5855-01-383-8339
NSN 6110-01-579-7805
NSN 5905-01-303-6236
NSN 6240-01-373-6417
NSN 5998-00-049-3472
NSN 5990-01-024-9659
NSN 5945-01-377-1424