An item designed as a principal member of various primary structures within an aircraft. It provides strength, rigidity and the like while maintaining the proper dimensional distances as required. It may include holes for mounting and/or joining to other items to form an assembly.
Classification: Other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites)
NSN 6240-01-230-8070
NSN 5985-00-730-5208
NSN 5950-01-552-2562
NSN 6320-01-643-0850
NSN 6145-01-314-7029
NSN 5930-01-388-0865
NSN 5998-01-415-2895
NSN 6150-01-316-9660
NSN 7035-01-357-3726
NSN 5960-01-380-0885
NSN 5945-01-156-5682
NSN 5950-01-016-2678