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 6685-01-152-1781
NSN 5998-01-323-5761
NSN 6135-01-301-8776
NSN 6610-00-314-2605
NSN 5996-01-258-5888
NSN 5895-01-413-0421
NSN 7035-00-232-4043
NSN 5985-01-374-4745
NSN 6110-01-469-7980
NSN 5999-01-339-7251
NSN 6150-00-189-0292
NSN 6645-00-917-6225