Steel per mil-s-18729
An item of various configuration that is an integral member of the airframe structure. It is specifically designed for the purpose of maintaining, positioning, joining, and strengthening the aircraft structure. It may include holes for mounting purposes or 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 5835-00-286-5432
NSN 5998-01-386-5773
NSN 6240-01-366-2948
NSN 5925-01-645-9594
NSN 6645-01-370-4259
NSN 5945-00-194-9714
NSN 6135-01-142-6456
NSN 4140-01-211-7836
NSN 5999-01-634-0576
NSN 5855-00-472-2055
NSN 5960-00-051-6159
NSN 6145-01-384-4477