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.
Dept. of the Air Force Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5835-01-622-2556
NSN 6145-01-277-2430
NSN 6685-01-611-6964
NSN 5835-01-020-5650
NSN 6240-00-983-4583
NSN 6130-01-353-2096
NSN 5930-01-422-1702
NSN 6610-01-010-2112
NSN 4140-01-124-2954
NSN 7035-01-268-0933
NSN 5945-01-022-8453
NSN 6130-00-329-4514