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 5910-01-454-2920
NSN 6240-01-407-8408
NSN 5996-00-259-0309
NSN 2925-01-453-1606
NSN 6320-01-652-3806
NSN 5910-00-203-5603
NSN 6240-00-653-8134
NSN 5999-01-420-1227
NSN 5999-01-207-1409
NSN 6130-01-160-1727
NSN 5990-01-555-6616
NSN 6145-01-122-6158