National Item Identification Number
011904923
01-190-4923
1560-01-190-4923
1560011904923
National Stock Number
Item Name
RIB,STIFFENER,AIRCRAFT
Federal Supply Class
1560
Description
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.
Commercial and Government Entity Code (Supplier Data)
82918
Reference Numbers (Part Numbers)
5-83978-503
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
AIRCRAFT LOCATION
AIRCRAFT MISS
Required Description
ALUMINUM ALLOY
QQ-A-367,COMP 5,CLASS 2,OR 4,FINISH F-2.30 FED SPEC SINGLE MATER