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 5905-00-818-3761
NSN 5855-00-014-5008
NSN 5999-00-982-9371
NSN 5915-01-259-5705
NSN 2925-01-330-2988
NSN 6320-00-823-2015
NSN 5915-01-429-7771
NSN 5905-01-093-9039
NSN 5998-01-152-6432
NSN 6150-01-605-3392
NSN 5975-01-328-6572
NSN 6685-00-536-0476