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 5990-01-631-5537
NSN 5999-01-453-7798
NSN 6610-01-201-7943
NSN 5925-00-999-9320
NSN 6105-00-643-4975
NSN 6620-00-292-7000
NSN 5996-01-555-7690
NSN 6220-00-823-6688
NSN 5990-01-293-4817
NSN 6220-01-246-2303
NSN 6150-01-411-4744
NSN 7035-01-330-6768