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 6645-00-955-1240
NSN 6110-01-512-8742
NSN 6110-01-659-4319
NSN 4140-01-467-4773
NSN 5950-00-939-2397
NSN 6105-01-254-1793
NSN 5920-01-354-6082
NSN 7035-01-080-3392
NSN 5835-00-302-5296
NSN 6145-01-227-0659
NSN 6620-00-035-5813
NSN 6685-01-460-8196