An auxiliary longitudinal member of the structural framework of a fuselage, nacelle, empennage, wing, and the like. It is designed to stiffen and/or support the skin by attachment of bulkheads, formers, frames, ribs, and the like.
Classification: Other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites)
NSN 6130-01-172-1344
NSN 4140-01-177-4776
NSN 4140-00-518-1963
NSN 5935-00-225-0402
NSN 5910-01-613-0010
NSN 5855-01-413-3352
NSN 5999-01-579-4343
NSN 7035-01-364-0286
NSN 5975-00-796-2886
NSN 5950-01-315-5187
NSN 5996-01-641-7919
NSN 6105-00-235-7982