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 5910-00-628-6389
NSN 6650-01-234-1895
NSN 6650-01-331-5243
NSN 5996-00-763-6245
NSN 5975-01-324-3457
NSN 6135-01-512-8740
NSN 6620-01-076-8706
NSN 5985-01-145-4526
NSN 5855-01-542-9059
NSN 6645-01-091-0009
NSN 5975-01-607-6129
NSN 6685-01-566-1815