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 5990-01-633-9503
NSN 5920-00-683-7883
NSN 5930-00-957-5217
NSN 6240-01-360-6213
NSN 4140-00-969-9602
NSN 5920-01-424-0745
NSN 5935-00-168-2452
NSN 5999-00-999-5476
NSN 6240-01-111-0476
NSN 5910-01-441-2301
NSN 5965-01-585-9939
NSN 5990-00-170-4239