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 4140-00-570-6545
NSN 6150-01-493-3164
NSN 2925-00-862-8550
NSN 5925-00-174-0872
NSN 5950-01-411-1466
NSN 6150-00-139-1566
NSN 6145-01-506-8222
NSN 5996-00-998-6341
NSN 5990-01-253-7647
NSN 5975-01-278-6576
NSN 5985-00-205-2922
NSN 5950-01-361-2686