A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 4140-01-399-4352
NSN 6645-01-317-1308
NSN 6610-00-596-9883
NSN 5996-01-613-6927
NSN 5950-00-709-9339
NSN 5920-01-071-1921
NSN 6130-01-065-3723
NSN 6130-01-055-5272
NSN 6220-01-484-2153
NSN 6145-01-018-1752
NSN 5920-01-384-6065
NSN 6320-01-578-6006