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 6220-01-013-9498
NSN 5975-01-029-1871
NSN 5996-01-498-2986
NSN 2925-01-172-9209
NSN 2925-00-261-5800
NSN 6645-00-551-8291
NSN 5998-01-457-9632
NSN 6685-01-506-7526
NSN 6650-01-264-3045
NSN 6220-01-156-0280
NSN 4140-01-381-4752
NSN 5925-01-504-6095