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 5996-00-621-2105
NSN 5925-00-386-8532
NSN 5910-01-067-9859
NSN 5905-01-119-6760
NSN 5990-01-056-6413
NSN 5965-00-806-7593
NSN 5935-01-386-4651
NSN 2925-00-644-0028
NSN 6220-00-887-0588
NSN 5999-01-567-2553
NSN 5930-01-571-8762
NSN 5996-00-322-5753