An internally threaded item with a cylindrical and/or square, hexagonal, octagonal, or dodecagonal outer periphery (parallel to the threaded axis) a portion(s) of which may or may not be enlarged, forming a flange(s) and/or shoulder(s). Items not having an enlarged outer portion may be threaded, a part of the full length, or tapped from both ends. Items having an enlarged outer portion (flange(s) or shoulder(s)) may be threaded the full length, threaded a part of the full length, or tapped from both ends. Items tapped from both ends shall have either right-hand threads on both ends or left-hand threads on both ends. For items conforming to any of the above and having a length overall exceeding two times the largest outside diameter or width across flats, use post, electrical-mechanical equipment. For items with an outside contour that is the same the full length, having a continuous thread through its entire length, and the length does not exceed two times the diameter or width across the flats use nut (1), plain (as modified). Excludes nut (1), plain, cap. See also turnbuckle body.
Slovenia 
Spain 
Australia 
Netherlands Classification: Nuts of iron or steel
NSN 5930-00-660-6774
NSN 6135-01-613-1464
NSN 6685-01-217-8420
NSN 5965-00-001-7593
NSN 6105-01-421-1493
NSN 5930-00-248-6608
NSN 6130-01-384-9466
NSN 6240-01-495-3676
NSN 5855-01-434-8467
NSN 5990-00-312-4036
NSN 7035-01-484-2709
NSN 5960-00-063-5505