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 5998-01-115-4438
NSN 6135-01-512-8740
NSN 5990-01-044-1271
NSN 5965-00-285-0745
NSN 6645-01-287-9969
NSN 5998-00-834-3243
NSN 5975-01-571-4171
NSN 5855-01-633-1253
NSN 5895-01-167-1023
NSN 5925-01-035-1898
NSN 6685-01-115-5288
NSN 6650-01-633-9147