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 5999-01-451-0234
NSN 6320-01-643-0850
NSN 5999-01-615-0938
NSN 6645-00-102-0015
NSN 6610-01-412-0058
NSN 5996-00-397-4318
NSN 6220-00-405-5986
NSN 6650-00-927-3391
NSN 5895-00-069-8502
NSN 5975-00-785-9288
NSN 4140-00-439-4100
NSN 5985-00-064-7103