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.
NSN 5990-00-177-2924
NSN 6610-01-417-3011
NSN 5895-01-557-5370
NSN 6650-00-954-4428
NSN 5985-00-964-3547
NSN 5905-01-412-8600
NSN 5905-00-438-1186
NSN 6645-01-528-7152
NSN 5999-00-360-3160
NSN 6220-01-032-5269
NSN 5930-00-103-6453
NSN 5915-01-289-1187