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 4140-01-106-1080
NSN 6610-01-487-8307
NSN 6620-00-439-2442
NSN 5975-00-521-8848
NSN 6105-01-176-6513
NSN 6650-01-428-2251
NSN 6130-01-239-9831
NSN 5905-00-928-8164
NSN 5998-01-647-0937
NSN 5855-01-406-7237
NSN 5920-01-134-1673
NSN 5996-01-219-1850