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 5920-00-661-0840
NSN 2925-00-486-8640
NSN 6145-00-577-8480
NSN 6135-01-215-1245
NSN 5990-01-553-6859
NSN 6320-00-809-5744
NSN 5985-00-231-3759
NSN 5925-01-458-8262
NSN 4140-00-021-7645
NSN 5915-00-247-6513
NSN 6105-01-159-7025
NSN 5905-01-088-6818