A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 6645-01-550-3722
NSN 5975-01-027-0253
NSN 6320-01-211-6578
NSN 5965-00-997-5764
NSN 7035-00-543-3272
NSN 5990-01-411-5930
NSN 6135-01-061-1862
NSN 7035-01-145-5059
NSN 5855-01-258-5161
NSN 5895-01-304-2209
NSN 6685-01-470-9129
NSN 5985-01-551-2048