A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5905-01-296-9200
NSN 6240-01-085-7216
NSN 5945-00-860-9205
NSN 5905-00-734-6386
NSN 6650-01-063-4793
NSN 4140-00-182-9158
NSN 5950-00-869-2814
NSN 5895-00-427-1790
NSN 6610-01-631-1184
NSN 6130-00-595-5943
NSN 7035-00-616-4410
NSN 6645-01-160-7707