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 5975-01-196-4990
NSN 6135-01-050-3194
NSN 5930-01-098-8156
NSN 5990-01-384-2697
NSN 5920-00-253-4227
NSN 7035-01-629-5408
NSN 2925-01-069-5324
NSN 5950-00-006-5351
NSN 6145-01-649-9619
NSN 5990-01-540-1619
NSN 6130-01-575-0965
NSN 5945-01-356-1263