A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5960-00-793-4397
NSN 2925-01-440-9912
NSN 5965-00-762-0630
NSN 5999-00-600-5380
NSN 5960-00-914-9277
NSN 7035-00-529-3128
NSN 5999-00-805-2150
NSN 5960-01-449-1310
NSN 6645-00-443-8011
NSN 6145-01-158-8408
NSN 5990-01-440-7135
NSN 6620-01-629-3210