Cylindrical protrusion on one end
A nut having one convex, spherical bearing surface, with 12 drive points, 24 sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5990-00-230-8981
NSN 5895-01-017-7574
NSN 6220-01-070-0826
NSN 6110-00-226-1753
NSN 6150-01-661-2971
NSN 6135-01-349-6285
NSN 6620-01-146-4680
NSN 6150-01-067-7107
NSN 6130-01-051-3079
NSN 6220-01-460-5605
NSN 6320-00-731-6134
NSN 6220-00-643-4045