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 6620-00-890-5581
NSN 5998-01-478-6183
NSN 5925-01-285-0401
NSN 5835-01-346-9575
NSN 5998-00-854-7012
NSN 5945-01-442-8081
NSN 5905-01-127-9360
NSN 6145-00-178-8830
NSN 6645-00-363-9775
NSN 6240-01-196-0497
NSN 5965-01-433-9864
NSN 5975-01-472-4201