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 6620-01-310-0216
NSN 4140-00-173-0706
NSN 5835-01-531-0379
NSN 5915-01-087-2661
NSN 6685-01-523-6889
NSN 5975-01-152-8058
NSN 5910-01-657-4685
NSN 2925-01-343-5887
NSN 5985-01-442-7064
NSN 5910-01-514-7309
NSN 4140-01-374-8467
NSN 6105-01-031-0854