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 4140-01-361-2292
NSN 6650-01-521-2077
NSN 5945-00-219-6129
NSN 6645-01-423-9361
NSN 5965-00-067-0290
NSN 6685-01-089-9606
NSN 5905-01-154-2458
NSN 6150-01-465-5917
NSN 5925-00-119-3333
NSN 6610-00-716-5248
NSN 5895-00-008-8272
NSN 6135-01-056-4609