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 6685-01-152-2846
NSN 6135-01-359-4293
NSN 5945-01-659-8858
NSN 5930-00-984-6161
NSN 5945-01-316-9508
NSN 6320-01-592-6248
NSN 6610-00-536-4977
NSN 6145-01-434-2950
NSN 5975-01-408-2070
NSN 5990-00-424-1598
NSN 5965-01-440-9039
NSN 5975-00-255-8778