No other part numbers with same form, fit, and function found.
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.
NSN 4140-01-422-8443
NSN 7035-01-172-0250
NSN 5930-00-901-2790
NSN 5920-00-285-2245
NSN 5855-01-503-6973
NSN 5910-00-350-3539
NSN 6110-01-335-6815
NSN 5905-01-113-1080
NSN 6610-00-878-9442
NSN 5920-00-604-6301
NSN 5930-00-550-7806
NSN 6620-01-022-9868