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 5920-01-139-5973
NSN 6320-00-937-5625
NSN 6130-00-889-1461
NSN 5905-01-236-3246
NSN 6135-01-345-4866
NSN 4140-01-084-7596
NSN 5915-00-429-1986
NSN 6320-01-444-6640
NSN 5950-01-592-3606
NSN 6620-01-492-8470
NSN 6650-00-085-3846
NSN 5930-01-342-7402