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 6110-01-120-1087
NSN 5925-01-361-4275
NSN 6145-01-505-2739
NSN 6130-01-554-9619
NSN 5945-01-363-4347
NSN 5855-01-496-2355
NSN 5945-01-500-1371
NSN 5960-01-101-5672
NSN 5945-01-232-0916
NSN 6110-00-101-9821
NSN 5975-01-470-3317
NSN 6685-00-633-4526