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 5855-01-341-2518
NSN 5930-01-557-0592
NSN 6685-01-424-0315
NSN 6645-01-532-5785
NSN 6685-01-411-3125
NSN 5915-01-576-8602
NSN 6105-01-592-2118
NSN 6110-00-082-0268
NSN 6620-01-519-2628
NSN 5915-00-732-2511
NSN 5920-01-348-2234
NSN 5925-00-324-2996