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 5990-00-611-1661
NSN 6240-00-905-6050
NSN 5915-00-221-2391
NSN 6220-01-007-8849
NSN 6685-00-618-9542
NSN 6220-00-197-9719
NSN 6105-01-571-9654
NSN 6620-01-258-6209
NSN 6240-00-771-2263
NSN 6145-01-541-9085
NSN 6610-01-603-0703
NSN 5950-00-573-6010